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Date:      Tue, 10 Jan 2012 22:20:48 +0100
From:      David Demelier <demelier.david@gmail.com>
To:        Hans Petter Selasky <hselasky@c2i.net>
Cc:        freebsd-acpi@freebsd.org
Subject:   Re: Suspend to ram almost work on desktop computer
Message-ID:  <4F0CABB0.80707@gmail.com>
In-Reply-To: <201201102208.47838.hselasky@c2i.net>
References:  <4F0C64E3.8020500@gmail.com> <201201102006.40527.bschmidt@techwires.net> <4F0C89BD.1010501@gmail.com> <201201102208.47838.hselasky@c2i.net>
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On 10/01/2012 22:08, Hans Petter Selasky wrote:
> On Tuesday 10 January 2012 19:55:57 David Demelier wrote:
>> On 10/01/2012 20:06, Bernhard Schmidt wrote:
>>> On Tuesday 10 January 2012 17:18:43 David Demelier wrote:
>>>> Hello,
>>>>
>>>> I have a desktop computer on a Intel DH55HC mainboard. Suspend to ram
>>>> almost works on 9.0-RELEASE.
>>>>
>>>> The resume works, I can get back to X and it works, started applications
>>>> still run but all my USB stuff is dead. I can't use my mouse neither my
>>>> keyboard so I can't do anything.
>>>>
>>>> This is the last messages :
>>>>
>>>> Jan 10 17:08:45 Groseille acpi: suspend at 20120110 17:08:45
>>>> Jan 10 17:08:49 Groseille kernel: ugen0.2:<BTC>   at usbus0
>>>> (disconnected) Jan 10 17:08:49 Groseille kernel: ukbd0: at uhub0, port
>>>> 1, addr 2 (disconnected)
>>>> Jan 10 17:08:49 Groseille kernel: uhid0: at uhub0, port 1, addr 2
>>>> (disconnected)
>>>> Jan 10 17:09:14 Groseille kernel: pcm1: chn_write():
>>>> pcm1:virtual:dsp1.vp0: play interrupt timeout, channel dead
>>>> Jan 10 17:09:14 Groseille kernel: ugen1.2:<vendor 0x0a12>   at usbus1
>>>> (disconnected)
>>>> Jan 10 17:09:14 Groseille kernel: ubt0: at uhub1, port 2, addr 2
>>>> (disconnected)
>>>> Jan 10 17:09:14 Groseille kernel: ugen1.2:<vendor 0x0a12>   at usbus1
>>>> Jan 10 17:09:14 Groseille kernel: ubt0:<vendor 0x0a12 EDRClassone,
>>>> class 224/1, rev 2.00/19.58, addr 2>   on usbus1
>>>> Jan 10 17:09:15 Groseille acpi: resumed at 20120110 17:09:15
>>>
>>> Applying the diff of
>>> http://docs.freebsd.org/cgi/getmsg.cgi?fetch=199056+0+archive/2012/svn-s
>>> rc-head/20120108.svn-src-head should fix that I guess.
>>
>> Someone gave me that diff on IRC, I updated all the kernel to -STABLE
>> and verified that this diff were present, it is. Unfortunately it didn't
>> fixed :(.
>
> Are you running 9-stable?
>
> --HPS

FreeBSD Groseille.malikania.fr 9.0-STABLE FreeBSD 9.0-STABLE #0: Tue Jan 
10 17:50:05 CET 2012 
root@Groseille.malikania.fr:/usr/obj/usr/src/sys/Groseille  amd64

markand@Groseille ~ $ head -n 490 
/usr/src/sys/dev/usb/controller/usb_controller.c | tail -n 59

/*------------------------------------------------------------------------*
  *	usb_bus_resume
  *
  * This function is used to resume the USB contoller.
 
*------------------------------------------------------------------------*/
static void
usb_bus_resume(struct usb_proc_msg *pm)
{
	struct usb_bus *bus;
	struct usb_device *udev;
	usb_error_t err;

	bus = ((struct usb_bus_msg *)pm)->bus;
	udev = bus->devices[USB_ROOT_HUB_ADDR];

	if (udev == NULL || bus->bdev == NULL)
		return;

	USB_BUS_UNLOCK(bus);

	usbd_enum_lock(udev);
#if 0
	DEVMETHOD(usb_take_controller, NULL);	/* dummy */
#endif
	USB_TAKE_CONTROLLER(device_get_parent(bus->bdev));

	USB_BUS_LOCK(bus);
  	bus->hw_power_state =
	  USB_HW_POWER_CONTROL |
	  USB_HW_POWER_BULK |
	  USB_HW_POWER_INTERRUPT |
	  USB_HW_POWER_ISOC |
	  USB_HW_POWER_NON_ROOT_HUB;
	bus->no_explore = 0;
	USB_BUS_UNLOCK(bus);

	if (bus->methods->set_hw_power_sleep != NULL)
		(bus->methods->set_hw_power_sleep) (bus, USB_HW_POWER_RESUME);

	if (bus->methods->set_hw_power != NULL)
		(bus->methods->set_hw_power) (bus);

	/* restore USB configuration to index 0 */
	err = usbd_set_config_index(udev, 0);
	if (err)
		device_printf(bus->bdev, "Could not configure root HUB\n");

	/* probe and attach */
	err = usb_probe_and_attach(udev, USB_IFACE_INDEX_ANY);
	if (err) {
		device_printf(bus->bdev, "Could not probe and "
		    "attach root HUB\n");
	}

	usbd_enum_unlock(udev);

	USB_BUS_LOCK(bus);
}

So I guess yes :))


-- 
David Demelier

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