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| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-01-02 11:07:06 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2014-01-02 11:07:06 +0100 |
| commit | d1be5e163c98c99b3b610dc5f4715455d506ba22 (patch) | |
| tree | f2dc76d29698dc339b7aecc670a17f1f6792bf2b | |
| parent | e56affb840a369ccca365ce6f0c83a55b99224bc (diff) | |
| download | plan9front-d1be5e163c98c99b3b610dc5f4715455d506ba22.tar.xz | |
ps2mouse: retry disable packet streaming command 0xf5
disabling mouse packet streaming command 0xf5 can fail
when a packet is currently transmitted.
this can be seen when one moves the mouse while running:
while(){echo accelerated >/dev/mousectl; sleep 0.5}
| -rw-r--r-- | sys/src/9/pc/mouse.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/src/9/pc/mouse.c b/sys/src/9/pc/mouse.c index 5113f8899..0519e5e76 100644 --- a/sys/src/9/pc/mouse.c +++ b/sys/src/9/pc/mouse.c @@ -260,9 +260,19 @@ resetmouse(void) static void setstream(int on) { + int i; + switch(mousetype){ case MousePS2: - i8042auxcmd(on ? 0xF4 : 0xF5); + /* + * disabling streaming can fail when + * a packet is currently transmitted. + */ + for(i=0; i<4; i++){ + if(i8042auxcmd(on ? 0xF4 : 0xF5) != -1) + break; + delay(50); + } break; } } |