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Defined base numbers for DEV_ request and response types.

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Defined response codes: DEV_REPLY, DEV_CLONED, DEV_REVIVE, DEV_IO_READY
This commit is contained in:
Jorrit Herder 2005-07-25 12:03:00 +00:00
parent 38987ff79a
commit 06c8f33853
1 changed files with 26 additions and 5 deletions
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31
include/minix/com.h
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@ -34,21 +34,22 @@
/* User-level processes, that is, device drivers, servers, and INIT. */
#define PM_PROC_NR 0 /* process manager */
#define FS_PROC_NR 1 /* file system */
#define SM_PROC_NR 2 /* system service manager */
#define IS_PROC_NR 5 /* information server */
#define TTY 6 /* terminal (TTY) driver */
#define MEMORY 8 /* memory driver (RAM disk, null, etc.) */
#define AT_WINI (MEMORY + ENABLE_AT_WINI) /* AT Winchester */
#define FLOPPY (AT_WINI + ENABLE_FLOPPY) /* floppy disk */
#define PRINTER (FLOPPY + ENABLE_PRINTER) /* Centronics */
#define USR8139 (PRINTER + ENABLE_RTL8139) /* Realtek RTL8139 */
#define FXP (USR8139 + ENABLE_FXP) /* Intel Pro/100 */
#define RTL8139 (PRINTER + ENABLE_RTL8139) /* Realtek RTL8139 */
#define FXP (RTL8139 + ENABLE_FXP) /* Intel Pro/100 */
#define DPETH (FXP + ENABLE_DPETH) /* ISA Network task */
#define LOG_PROC_NR (DPETH + ENABLE_LOG) /* log device */
#define INIT_PROC_NR (LOG_PROC_NR + 1) /* init -- goes multiuser */
/* Number of processes contained in the system image. */
#define NR_BOOT_PROCS (NR_TASKS + \
5 + ENABLE_AT_WINI + ENABLE_FLOPPY + \
6 + ENABLE_AT_WINI + ENABLE_FLOPPY + \
ENABLE_PRINTER + ENABLE_RTL8139 + ENABLE_FXP + \
ENABLE_DPETH + ENABLE_LOG + 1 )
@ -63,7 +64,8 @@
* blocking notifications are delivered. The lowest numbers go first. The
* offset are used for the per-process notification bit maps.
*/
#define NOTIFY_FROM(p_nr) (0x1000 | ((p_nr) + NR_TASKS))
#define NOTIFY_MESSAGE 0x1000
#define NOTIFY_FROM(p_nr) (NOTIFY_MESSAGE | ((p_nr) + NR_TASKS))
# define SYN_ALARM NOTIFY_FROM(CLOCK) /* synchronous alarm */
# define SYS_EVENT NOTIFY_FROM(SYSTEM) /* signal system event */
# define HARD_INT NOTIFY_FROM(HARDWARE) /* hardware interrupt */
@ -71,7 +73,6 @@
# define FKEY_PRESSED NOTIFY_FROM(TTY) /* function key press */
#define NOTIFICATION 0x800 /* flag for notifications */
# define HARD_STOP (NOTIFICATION | 4) /* system shutdown */
# define DEV_SELECTED (NOTIFICATION | 5) /* select() notification */
#define NR_NOTIFY_TYPES 6 /* nr of bits in mask */
@ -83,10 +84,21 @@
#define NOTIFY_FLAGS m2_i1
/*===========================================================================*
* Messages for system management server *
*===========================================================================*/
#define START_SERVICE 0
#define STOP_SERVICE 1
/*===========================================================================*
* Messages for BLOCK and CHARACTER device drivers *
*===========================================================================*/
#define DEV_RQ_BASE 0x400 /* base for device request types */
#define DEV_RS_BASE 0x500 /* base for device response types */
#define CANCEL 0 /* general req to force a task to cancel */
#define DEV_READ 3 /* fcn code for reading from tty */
#define DEV_WRITE 4 /* fcn code for writing to tty */
@ -98,6 +110,13 @@
#define TTY_SETPGRP 10 /* fcn code for setpgroup */
#define TTY_EXIT 11 /* a process group leader has exited */
#define DEV_SELECT 12 /* request select() attention */
#define DEV_STATUS (DEV_RQ_BASE + 13) /* request driver status */
#define DEV_REPLY (DEV_RS_BASE + 0) /* general task reply */
#define DEV_CLONED (DEV_RS_BASE + 1) /* return cloned minor */
#define DEV_REVIVE (DEV_RS_BASE + 2) /* driver revives process */
#define DEV_IO_READY (DEV_RS_BASE + 3) /* selected device ready */
#define SUSPEND -998 /* used in interrupts when tty has no data */
/* Field names for messages to block and character device drivers. */
@ -206,6 +225,8 @@
* modifying the system call numbers. The numbers here determine which call
* is made from the call vector.
*/
#define KERNEL_CALL 0x600 /* base for kernel calls to SYSTEM */
# define SYS_TIMES 0 /* sys_times(proc_nr, bufptr) */
# define SYS_EXIT 1 /* sys_exit(parent, proc) */
# define SYS_GETKSIG 2 /* sys_getsig(proc_nr, sig_map) */