At Wed, 04 Nov 2009 12:45:20 -0700, Troy Kisky wrote:
Takashi Iwai wrote:
At Tue, 3 Nov 2009 12:22:37 -0700, Troy Kisky wrote:
Poulsbo(US15W) cannot have any corb registers initialized when using single_cmd mode. When send_cmd timeout occur, note error.
Could you be more specific? What errors do you get?
And, how it goes to single_cmd mode? The single_cmd mode is very last resort, and reaching there means already a serious problem.
thanks,
Takashi
No error messages, but the response read is always 0.
This is odd. Something is already wrong, then.
For testing, I passed single_cmd=1 as a modules option.
HDAudio_03.pdf says, "If implemented, these registers must not be used at the same time as the CORB and RIRB command/response mechanisms, as the operations will conflict."
I know this, but actually this never be a problem in the real hardware. So, it's left there.
Plus, if the RIRB irq is enabled, the interrupt routine will print out a spurious interrupt message.
That said, my hardware is switching to single_cmd eventually, even if not passed as a module option. But at least now, when that happens my audio isn't dead.
It's not dead but living-dead :) The single_cmd mode is really only for debugging. It's never for any running system.
thanks,
Takashi