On Thu, Feb 09, 2012 at 11:51:45AM +0100, Gerd Hoffmann wrote:
> Hi,
>
> >> Pretend that resume was caused by power button */
> >> pm1a->sts |=
> >> (ACPI_BITMASK_WAKE_STATUS |
> >> ACPI_BITMASK_POWER_BUTTON_STATUS);
> > Here we should report real reason for a wakeup (if it can be reported in
> > mp1sts that is).
>
> These are available I guess?
>
Yes. Once those defines had the same names as ACPI spec, but some kind soul
renamed them to be more "descriptive". So forgive me if I will use names
that you actually can lookup in ACPI spec.
> /* PM1x_STS */
> #define ACPI_BITMASK_TIMER_STATUS 0x0001
> #define ACPI_BITMASK_BUS_MASTER_STATUS 0x0010
> #define ACPI_BITMASK_GLOBAL_LOCK_STATUS 0x0020
> #define ACPI_BITMASK_POWER_BUTTON_STATUS 0x0100
> #define ACPI_BITMASK_SLEEP_BUTTON_STATUS 0x0200
> #define ACPI_BITMASK_RT_CLOCK_STATUS 0x0400
> #define ACPI_BITMASK_PCIEXP_WAKE_STATUS 0x4000 /* ACPI 3.0 */
> #define ACPI_BITMASK_WAKE_STATUS 0x8000
>
Only three of those are actually wakeup source related:
PWRBTN_STS (bit 8)
RTC_STS (bit 10)
PCIEXP_WAKE_STS (bit 14)
And of course if system was awoken WAK_STS (bit 15) should be set too.
> What do they mean? How would the rtc wakeup be tagged? Set
> ACPI_BITMASK_RT_CLOCK_STATUS? Anything I can use for ps/2 kbd/mouse
> wakeup? What do you suggest to do when there is nothing usable (such as
> qemu monitor command which simply doesn't exist on real hardware)?
>
RTC will set RTC_STS. In other reply I suggested to use PWRBTN_STS for
monitor command wakeup. Other devices are more complicated :( They have
to provide _PRW (Power Resources for Wake) method in the device
description in DSDT. This method, among other things, specifies which
bit in GPE (and which GPE) correspond to the device.
--
Gleb.
