On Tue, Aug 31, 2010 at 11:16 PM, Scott <[email protected]> wrote:
> Hello,
>
> While testing on AMD simnow I encounter a timeout in keyboard.c line 246:
>
> /* All is well - enable keyboard interface */
> if (!kbc_input_buffer_empty()) return;
> outb(0x60, KBD_COMMAND);
> if (!kbc_input_buffer_empty()) return;
> outb(0x61, KBD_DATA); /* send cmd: enable keyboard and IRQ 1 */
> if (kbc_output_buffer_full()) {
> printk(BIOS_ERR, "Timeout during final keyboard enable\n"); <=======
> return;
> }
>
> It seems like line 245 should call kbc_input_buffer_empty() instead of
> kbc_output_buffer_full() because the previous I/O does not cause the
> keyboard to generate any data.
>
> On simnow, this causes a boot delay of a minute or so. On real hardware,
> It appears it could cause a boot delay of 400 ms. Does anyone testing
> with real hardware ever notice the "Timeout during final keyboard enable"
> message when logging is enabled?
if (!timeout) {
printk(BIOS_INFO, "Keyboard controller output buffer
result timeout\n");
}
I see this one in hardware.
Thanks,
Myles
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