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ps2mouse: disable packet streaming during reprogramming

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sometimes, ps2 mouse setup failed on thinkpads during boot. disabling
packet streaming while we program the mouse seems to fix the issue.
This commit is contained in:
cinap_lenrek 2014-01-02 07:44:17 +01:00
parent 0e242236ba
commit e56affb840
2 changed files with 22 additions and 8 deletions
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4
sys/src/9/pc/devkbd.c
View file

@ -164,10 +164,7 @@ i8042auxcmd(int cmd)
{
unsigned int c;
int tries;
static int badkbd;
if(badkbd)
return -1;
c = 0;
tries = 0;
@ -191,7 +188,6 @@ i8042auxcmd(int cmd)
if(c != 0xFA){
print("i8042: %2.2ux returned to the %2.2ux command\n", c, cmd);
badkbd = 1; /* don't keep trying; there might not be one */
return -1;
}
return 0;

26
sys/src/9/pc/mouse.c
View file

@ -165,9 +165,7 @@ ps2mouse(void)
return;
i8042auxenable(ps2mouseputc);
/* make mouse streaming, enabled */
i8042auxcmd(0xEA);
i8042auxcmd(0xF4);
i8042auxcmd(0xEA); /* set stream mode */
mousetype = MousePS2;
packetsize = 3;
@ -255,7 +253,16 @@ resetmouse(void)
i8042auxcmd(0xEA); /* streaming */
i8042auxcmd(0xE8); /* set resolution */
i8042auxcmd(3);
i8042auxcmd(0xF4); /* enabled */
break;
}
}
static void
setstream(int on)
{
switch(mousetype){
case MousePS2:
i8042auxcmd(on ? 0xF4 : 0xF5);
break;
}
}
@ -274,27 +281,37 @@ mousectl(Cmdbuf *cb)
ct = lookupcmd(cb, mousectlmsg, nelem(mousectlmsg));
switch(ct->index){
case CMaccelerated:
setstream(0);
setaccelerated(cb->nf == 1 ? 1 : atoi(cb->f[1]));
setstream(1);
break;
case CMintellimouse:
setstream(0);
setintellimouse();
setstream(1);
break;
case CMlinear:
setstream(0);
setlinear();
setstream(1);
break;
case CMps2:
intellimouse = 0;
ps2mouse();
setstream(1);
break;
case CMps2intellimouse:
ps2mouse();
setintellimouse();
setstream(1);
break;
case CMres:
setstream(0);
if(cb->nf >= 2)
setres(atoi(cb->f[1]));
else
setres(1);
setstream(1);
break;
case CMreset:
resetmouse();
@ -304,6 +321,7 @@ mousectl(Cmdbuf *cb)
setres(resolution);
if(intellimouse)
setintellimouse();
setstream(1);
break;
case CMserial:
if(mousetype == Mouseserial)