sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

don't ignore the fact that scancodes are escaped.

Browse source 
if not understood explicitly, print diagnostic and 
ignore scancode.
This commit is contained in:
Ben Gras 2008-12-21 03:53:25 +00:00
parent 23a158b361
commit 0579810535
1 changed files with 18 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
drivers/tty/keyboard.c
View file

@ -692,6 +692,7 @@ int scode; /* scan code of key just struck or released */
*/
int ch, make, escape;
static int CAD_count = 0;
static int rebooting = 0;
/* Check for CTRL-ALT-DEL, and if found, halt the computer. This would
* be better done in keyboard() in case TTY is hung, except control and
@ -704,8 +705,11 @@ int scode; /* scan code of key just struck or released */
sys_abort(RBT_HALT);
}
sys_kill(INIT_PROC_NR, SIGABRT);
return -1;
rebooting = 1;
}
if(rebooting)
return -1;
/* High-order bit set on key release. */
make = (scode & KEY_RELEASE) == 0; /* true if pressed */
@ -733,6 +737,7 @@ int scode; /* scan code of key just struck or released */
alt_down = make;
break;
case CALOCK: /* Caps lock - toggle on 0 -> 1 transition */
if(escape) return -1;
if (caps_down < make) {
locks[ccurrent] ^= CAPS_LOCK;
set_leds();
@ -740,6 +745,7 @@ int scode; /* scan code of key just struck or released */
caps_down = make;
break;
case NLOCK: /* Num lock */
if(escape) return -1;
if (num_down < make) {
locks[ccurrent] ^= NUM_LOCK;
set_leds();
@ -747,6 +753,7 @@ int scode; /* scan code of key just struck or released */
num_down = make;
break;
case SLOCK: /* Scroll lock */
if(escape) return -1;
if (scroll_down < make) {
locks[ccurrent] ^= SCROLL_LOCK;
set_leds();
@ -757,7 +764,16 @@ int scode; /* scan code of key just struck or released */
esc = 1; /* Next key is escaped */
return(-1);
default: /* A normal key */
if (make) return(ch);
if(escape) {
printf("tty: ignoring escaped 0x%x\n", scode);
return -1;
}
if(!ch) {
printf("tty: ignoring unrecognized scancode 0x%x\n",
scode);
return -1;
}
if(make) return(ch);
}
/* Key release, or a shift type key. */
@ -1194,22 +1210,6 @@ PRIVATE int scan_keyboard(bp, isauxp)
unsigned char *bp;
int *isauxp;
{
#if 0 /* Is this old XT code? It doesn't match the PS/2 hardware */
/* Fetch the character from the keyboard hardware and acknowledge it. */
pvb_pair_t byte_in[2], byte_out[2];
byte_in[0].port = KEYBD; /* get the scan code for the key struck */
byte_in[1].port = PORT_B; /* strobe the keyboard to ack the char */
if(sys_vinb(byte_in, 2) != OK) /* request actual input */
printf("scan_keyboard: sys_vinb failed\n");
pv_set(byte_out[0], PORT_B, byte_in[1].value | KBIT); /* strobe bit high */
pv_set(byte_out[1], PORT_B, byte_in[1].value); /* then strobe low */
if(sys_voutb(byte_out, 2) != OK) /* request actual output */
printf("scan_keyboard: sys_voutb failed\n");
return(byte_in[0].value); /* return scan code */
#else
unsigned long b, sb;
if(sys_inb(KB_STATUS, &sb) != OK)
@ -1246,7 +1246,6 @@ int *isauxp;
kbd_send();
}
return 1;
#endif
}
/*===========================================================================*