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| author | Paul Mackerras <paulus@samba.org> | 2006-12-04 15:59:07 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-12-04 15:59:07 +1100 |
| commit | 79acbb3ff2d8095b692e1502b9eb2ccec348de26 (patch) | |
| tree | 6ab773e5a8f9de2cd6443362b21d0d6fffe3b35e /drivers/input/serio/i8042.c | |
| parent | 19a79859e168640f8e16d7b216d211c1c52b687a (diff) | |
| parent | 2b5f6dcce5bf94b9b119e9ed8d537098ec61c3d2 (diff) | |
| download | op-kernel-dev-79acbb3ff2d8095b692e1502b9eb2ccec348de26.zip op-kernel-dev-79acbb3ff2d8095b692e1502b9eb2ccec348de26.tar.gz | |
Merge branch 'linux-2.6' into for-linus
Diffstat (limited to 'drivers/input/serio/i8042.c')
| -rw-r--r-- | drivers/input/serio/i8042.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index 09b06e6..7e3141f 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -106,6 +106,7 @@ static unsigned char i8042_ctr; static unsigned char i8042_mux_present; static unsigned char i8042_kbd_irq_registered; static unsigned char i8042_aux_irq_registered; +static unsigned char i8042_suppress_kbd_ack; static struct platform_device *i8042_platform_device; static irqreturn_t i8042_interrupt(int irq, void *dev_id); @@ -316,7 +317,7 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id) unsigned char str, data; unsigned int dfl; unsigned int port_no; - int ret; + int ret = 1; spin_lock_irqsave(&i8042_lock, flags); str = i8042_read_status(); @@ -378,10 +379,16 @@ static irqreturn_t i8042_interrupt(int irq, void *dev_id) dfl & SERIO_PARITY ? ", bad parity" : "", dfl & SERIO_TIMEOUT ? ", timeout" : ""); + if (unlikely(i8042_suppress_kbd_ack)) + if (port_no == I8042_KBD_PORT_NO && + (data == 0xfa || data == 0xfe)) { + i8042_suppress_kbd_ack = 0; + goto out; + } + if (likely(port->exists)) serio_interrupt(port->serio, data, dfl); - ret = 1; out: return IRQ_RETVAL(ret); } @@ -842,11 +849,13 @@ static long i8042_panic_blink(long count) led ^= 0x01 | 0x04; while (i8042_read_status() & I8042_STR_IBF) DELAY; + i8042_suppress_kbd_ack = 1; i8042_write_data(0xed); /* set leds */ DELAY; while (i8042_read_status() & I8042_STR_IBF) DELAY; DELAY; + i8042_suppress_kbd_ack = 1; i8042_write_data(led); DELAY; last_blink = count; |
