Keeping PCMCIA card powered while in S3

[Nate Lawson]

M. Warner Losh wrote:
> In message: <41BB83F6.4010309 at root.org>
>             Nate Lawson <nate at root.org> writes:
> : Alexandre "Sunny" Kovalenko wrote:
> : > Good people,
> : > 
> : > is there any chance to keep PCMCIA firewire card powered when machine
> : > goes into S3 mode, or at least push poweroff as far as possible. The 
> : > reason for the question is that I am trying to debug S3 mode and do not
> : > have any other usable means on this laptop.
> : > 
> : > Any suggestions, especially RTFMs with FM pointers are welcome.
> : > 
> : 
> : We currently don't power down cardbus (PCMCIA) busses but we do power 
> : down the card itself.  Setting hw.pci.do_powerstate=0 before suspending 
> : (or in /boot/loader.conf) should stop all PCI power state setting 
> : (including cardbus which is just another pci-like bridge).
> 
> I thought that we did power off cardbus cards:
> 
> static int
> cardbus_suspend(device_t self)
> {
> 	cardbus_detach_card(self);
> 	return (0);
> }
> 
> which has the side effects of turning off the card entirely.

Sorry, I was wrong.  I was looking at this from a pure pci_suspend() 
perspective.

-- 
Nate