Added possibility to inject input events to tty

M    include/Makefile
A    include/minix/input.h
M    include/minix/com.h
M    drivers/tty/keyboard.c
M    drivers/tty/tty.c
M    drivers/tty/tty.h
M    include/minix/syslib.h
M    lib/libsys/Makefile
A    lib/libsys/input.c

drivers/tty/keyboard.c

@@ -17,6 +17,7 @@
 #include <machine/archtypes.h>
 #include <minix/callnr.h>
 #include <minix/com.h>
+#include <minix/input.h>
 #include <minix/keymap.h>
 #include "tty.h"
 #include "kernel/const.h"
@@ -74,6 +75,12 @@ PRIVATE int aux_irq_hook_id = -1;
 
 #define CONSOLE		   0	/* line number for console */
 #define KB_IN_BYTES	  32	/* size of keyboard input buffer */
+
+PRIVATE char injbuf[KB_IN_BYTES];
+PRIVATE char *injhead = injbuf;
+PRIVATE char *injtail = injbuf;
+PRIVATE int injcount;
+
 PRIVATE char ibuf[KB_IN_BYTES];	/* input buffer */
 PRIVATE char *ihead = ibuf;	/* next free spot in input buffer */
 PRIVATE char *itail = ibuf;	/* scan code to return to TTY */
@@ -558,6 +565,31 @@ message *m_ptr;
   }
 }
 
+
+PUBLIC void do_kb_inject(message *msg)
+{
+	unsigned char scode;
+	/* only handle keyboard events */
+	if (msg->INPUT_TYPE == INPUT_EV_KEY) {
+		scode = msg->INPUT_CODE;
+		
+		/* is it a KEY RELEASE? */
+		if (msg->INPUT_VALUE == 0) {
+			scode |= KEY_RELEASE;	
+		}
+
+		if (injcount < KB_IN_BYTES) {
+			*injhead++ = scode;
+			if (injhead == injbuf + KB_IN_BYTES) injhead = injbuf;
+			injcount++;
+			tty_table[ccurrent].tty_events = 1;
+			if (tty_table[ccurrent].tty_select_ops & SEL_RD) {
+				select_retry(&tty_table[ccurrent]);
+			}
+		}
+	}
+}
+
 /*===========================================================================*
  *				kb_read					     *
  *===========================================================================*/
@@ -570,22 +602,32 @@ int try;
   int scode;
   unsigned ch;
   
-  tp = &tty_table[ccurrent];		/* always use the current console */
+  /* always use the current console */
+  tp = &tty_table[ccurrent];
 
   if (try) {
   	if (icount > 0) return 1;
   	return 0;
   }
 
-  while (icount > 0) {
+  while (icount > 0 || injcount > 0) {
-	scode = *itail++;			/* take one key scan code */
+	  if (injcount > 0) { 
+		  /* take one key scan code */
+		  scode = *injtail++;
+		  if (injtail == injbuf + KB_IN_BYTES) injtail = injbuf;
+		  injcount--;
+	  } else {
+		  /* take one key scan code */
+		  scode = *itail++;			
 		  if (itail == ibuf + KB_IN_BYTES) itail = ibuf;
 		  icount--;
+	  }
 
 	/* Function keys are being used for debug dumps (if enabled). */
 	if (debug_fkeys && func_key(scode)) continue;
 
 	/* Perform make/break processing. */
+
 	ch = make_break(scode);
 
 	if (ch <= 0xFF) {

drivers/tty/tty.c

@@ -232,6 +232,9 @@ PUBLIC int main(void)
 	case FKEY_CONTROL:		/* (un)register a fkey observer */
 		do_fkey_ctl(&tty_mess);
 		continue;
+	case INPUT_EVENT:
+		do_kb_inject(&tty_mess);
+		continue;
 	default:			/* should be a driver request */
 		;			/* do nothing; end switch */
 	}

drivers/tty/tty.h

@@ -180,6 +180,7 @@ _PROTOTYPE( int kbd_loadmap, (message *m, int safe)			);
 _PROTOTYPE( void do_fkey_ctl, (message *m)				);
 _PROTOTYPE( void kbd_interrupt, (message *m)				);
 _PROTOTYPE( void do_kbd, (message *m)					);
+_PROTOTYPE( void do_kb_inject, (message *m)             );
 _PROTOTYPE( void do_kbdaux, (message *m)				);
 _PROTOTYPE( int kbd_status, (message *m_ptr)				);
 

include/Makefile

@@ -29,7 +29,7 @@ INCS+=	minix/a.out.h minix/bitmap.h minix/callnr.h minix/cdrom.h \
 	minix/sysutil.h minix/timers.h minix/tty.h minix/type.h minix/types.h \
 	minix/u64.h minix/vfsif.h minix/vm.h minix/vtreefs.h minix/gcov.h  \
 	minix/compiler.h minix/compiler-ack.h minix/sha2.h minix/sha1.h minix/md5.h \
-	minix/audio_fw.h minix/hash.h
+	minix/audio_fw.h minix/hash.h minix/input.h
 INCS+=	net/hton.h net/if.h net/ioctl.h net/netlib.h
 INCS+=	net/gen/arp_io.h net/gen/dhcp.h net/gen/ether.h \
 	net/gen/eth_hdr.h net/gen/eth_io.h net/gen/icmp.h \

include/minix/com.h

@@ -22,6 +22,7 @@
  *    0xE00 -  0xEFF	Common system messages (e.g. system signals)
  *    0xF00 -  0xFFF    Scheduling messages
  *   0x1000 - 0x10FF	Notify messages
+ *   0x1300 - 0x13FF    TTY Input
  *
  * Zero and negative values are widely used for OK and error responses.
  */
@@ -1172,6 +1173,18 @@
 /* SCHEDULING_INHERIT is like SCHEDULING_START, but without _QUANTUM field */
 #define SCHEDULING_INHERIT	(SCHEDULING_BASE+5)
 
+/*===========================================================================*
+ *              TTY INPUT INJECTION                                          *
+ *===========================================================================*/
+
+#define INPUT_BASE 0x1300
+
+#define INPUT_EVENT      (INPUT_BASE + 0)
+
+#	define INPUT_TYPE        m4_l1
+#	define INPUT_CODE        m4_l2
+#	define INPUT_VALUE       m4_l3
+
 #endif
 
 /* _MINIX_COM_H */

include/minix/input.h

@@ -0,0 +1,8 @@
+#ifndef _MINIX_INPUT_H
+#define _MINIX_INPUT_H
+
+#define INPUT_EV_KEY 0x1
+#define INPUT_EV_REL 0x2
+#define INPUT_EV_ABS 0x3
+
+#endif

include/minix/syslib.h

@@ -268,5 +268,8 @@ _PROTOTYPE( int sys_profbuf, (void *ctl_ptr, void *mem_ptr)            );
 _PROTOTYPE( int sys_getmcontext, (endpoint_t proc, mcontext_t *mcp)	);
 _PROTOTYPE( int sys_setmcontext, (endpoint_t proc, mcontext_t *mcp)	);
 
+/* input */
+_PROTOTYPE( int tty_input_inject, (int type, int code, int val) );
+
 #endif /* _SYSLIB_H */
 

lib/libsys/Makefile

@@ -5,8 +5,24 @@ LIB=		sys
 SRCS=  \
 	alloc_util.c \
 	assert.c \
+	asynsend.c \
+	ds.c	\
+	env_get_prm.c \
+	env_panic.c \
+	env_parse.c \
+	env_prefix.c \
+	fkey_ctl.c \
+	gcov.c \
+	get_randomness.c \
+	getidle.c \
 	getsysinfo.c \
+	getuptime.c \
+	getuptime2.c \
+	input.c \
 	kernel_call.c \
+	kprintf.c \
+	kputc.c \
+	kputs.c \
 	panic.c \
 	pci_attr_r16.c \
 	pci_attr_r32.c \
@@ -27,6 +43,8 @@ SRCS=  \
 	pci_reserve.c \
 	pci_set_acl.c \
 	pci_slot_name.c \
+	profile.c \
+	profile_extern.c \
 	safecopies.c \
 	sched_start.c \
 	sched_stop.c \
@@ -36,9 +54,11 @@ SRCS=  \
 	sef_liveupdate.c \
 	sef_ping.c \
 	sef_signal.c \
+	ser_putc.c \
+	spin.c \
+	stacktrace.c \
 	sys_abort.c \
 	sys_clear.c \
-	sys_mcontext.c \
 	sys_cprof.c \
 	sys_endsig.c \
 	sys_eniop.c \
@@ -47,37 +67,38 @@ SRCS=  \
 	sys_fork.c \
 	sys_getinfo.c \
 	sys_getsig.c \
+	sys_hz.c \
 	sys_in.c \
 	sys_int86.c \
 	sys_irqctl.c \
 	sys_kill.c \
+	sys_mcontext.c \
 	sys_memset.c \
 	sys_newmap.c \
 	sys_out.c \
 	sys_physcopy.c \
+	sys_privctl.c \
+	sys_profbuf.c \
 	sys_readbios.c \
 	sys_runctl.c \
-	sys_update.c \
 	sys_safecopy.c \
 	sys_safemap.c \
-	sys_sysctl.c \
+	sys_schedctl.c \
-	sys_vsafecopy.c \
+	sys_schedule.c \
-	sys_profbuf.c \
 	sys_sdevio.c \
 	sys_segctl.c \
 	sys_setalarm.c \
+	sys_setgrant.c \
 	sys_sigreturn.c \
 	sys_sigsend.c \
-	sys_privctl.c \
-	sys_setgrant.c \
 	sys_sprof.c \
-	sys_stime.c \
-        sys_schedule.c \
-        sys_schedctl.c \
 	sys_statectl.c \
+	sys_stime.c \
+	sys_sysctl.c \
 	sys_times.c \
 	sys_trace.c \
 	sys_umap.c \
+	sys_update.c \
 	sys_vinb.c \
 	sys_vinl.c \
 	sys_vinw.c \
@@ -86,44 +107,24 @@ SRCS=  \
 	sys_voutb.c \
 	sys_voutl.c \
 	sys_voutw.c \
+	sys_vsafecopy.c \
 	sys_vtimer.c \
 	taskcall.c \
-	ds.c	\
+	tickdelay.c \
+	timers.c \
+	timing.c \
+	tsc_util.c \
 	vm_brk.c \
 	vm_exec_newmem.c \
 	vm_exit.c \
-	vm_notify_sig.c \
 	vm_fork.c \
 	vm_info.c \
 	vm_map_phys.c \
-	vm_umap.c \
+	vm_notify_sig.c \
 	vm_push_sig.c \
+	vm_umap.c \
 	vm_yield_get_block.c \
-	asynsend.c \
-	kprintf.c \
-	kputc.c \
-	kputs.c \
-	tickdelay.c \
-	get_randomness.c \
-	getidle.c \
-	getuptime.c \
-	getuptime2.c \
-	env_get_prm.c \
-	env_parse.c \
-	env_panic.c \
-	env_prefix.c \
-	fkey_ctl.c \
-	tsc_util.c \
-	ser_putc.c \
-	stacktrace.c \
-	sys_hz.c \
-	timing.c \
-	profile_extern.c \
-	profile.c \
 	vprintf.c \
-	timers.c \
-	spin.c \
-	gcov.c
 
 CPPFLAGS.sched_start.c+=	-I${MINIXSRCDIR}
 

lib/libsys/input.c

@@ -0,0 +1,17 @@
+#include "syslib.h"
+#include <minix/sysutil.h>
+/*****************************************************************************
+ *             tty_inject_event                                              *
+ *****************************************************************************/
+PUBLIC int tty_inject_event(type, code, val)
+int type;
+int code;
+int val;
+{
+	message msg;
+	msg.INPUT_TYPE  = type;
+	msg.INPUT_CODE  = code;
+	msg.INPUT_VALUE = val;
+
+	return send(TTY_PROC_NR, &msg);
+}