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Added possibility to inject input events to tty

Browse source 
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
This commit is contained in:
Dirk Vogt 2010-11-17 14:53:07 +00:00
parent 4ee146c00a
commit c22564335f
9 changed files with 132 additions and 44 deletions
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54
drivers/tty/keyboard.c
View file

@ -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 *
*===========================================================================*/
@ -569,23 +601,33 @@ int try;
char buf[7], *p, suffix;
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) {
scode = *itail++; /* take one key scan code */
if (itail == ibuf + KB_IN_BYTES) itail = ibuf;
icount--;
while (icount > 0 || injcount > 0) {
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) {

3
drivers/tty/tty.c
View file

@ -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 */
}

1
drivers/tty/tty.h
View file

@ -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) );

2
include/Makefile
View file

@ -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 \

13
include/minix/com.h
View file

@ -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 */

8
include/minix/input.h Normal file
View file

@ -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

3
include/minix/syslib.h
View file

@ -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 */

75
lib/libsys/Makefile
View file

@ -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_vsafecopy.c \
sys_profbuf.c \
sys_schedctl.c \
sys_schedule.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_statectl.c \
sys_stime.c \
sys_schedule.c \
sys_schedctl.c \
sys_statectl.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}

17
lib/libsys/input.c Normal file
View file

@ -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);
}