Hi!
> Hi all
>
> Here's what I have after today's work.
>
> I haven't yet been able to test on x86, but can confirm that it works okay on x86_64. I'm currently working towards testing it on my old Omnibook. My P4 desktop won't resume from suspend to ram at all, and hasn't produced any beeps.
>
> I needed to move the BEEP invocation to after the data segment is reloaded, so that the test could access the variable. That was pretty tricky to find - no oops or anything bad prior, it just didn't beep when expected.
>
> A couple of notes:
>
> - I'd like to put the BEEP macro somewhere that can be shared by x86 32 and 64. If that's a good idea, any suggestions on where? Nothing occurs to me straight off.
> - I've just switched from Evo to Kmail. Please let me know if there's any mangling of the patch.
>
> Regards,
>
> Nigel
>
> arch/i386/kernel/acpi/wakeup.S | 29 ++++++++++++++++++++++++++++-
> arch/x86_64/kernel/acpi/wakeup.S | 25 +++++++++++++++++++++++++
> include/linux/acpi.h | 1 +
> kernel/power/main.c | 23 +++++++++++++++++++++++
> 4 files changed, 77 insertions(+), 1 deletion(-)
> diff -ruNp 970-str-beep.patch-old/arch/i386/kernel/acpi/wakeup.S 970-str-beep.patch-new/arch/i386/kernel/acpi/wakeup.S
> --- 970-str-beep.patch-old/arch/i386/kernel/acpi/wakeup.S 2007-06-19 12:15:25.000000000 +1000
> +++ 970-str-beep.patch-new/arch/i386/kernel/acpi/wakeup.S 2007-06-19 21:14:49.000000000 +1000
> @@ -11,7 +11,22 @@
> #
> # If physical address of wakeup_code is 0x12345, BIOS should call us with
> # cs = 0x1234, eip = 0x05
> -#
> +#
> +
> +#define BEEP \
> + inb $97, %al; \
> + outb %al, $0x80; \
> + movb $3, %al; \
> + outb %al, $97; \
> + outb %al, $0x80; \
> + movb $-74, %al; \
> + outb %al, $67; \
> + outb %al, $0x80; \
> + movb $-119, %al; \
> + outb %al, $66; \
> + outb %al, $0x80; \
> + movb $15, %al; \
> + outb %al, $66;
>
> ALIGN
> .align 4096
> @@ -31,6 +46,11 @@ wakeup_code:
> movw %cs, %ax
> movw %ax, %ds # Make ds:0 point to wakeup_start
> movw %ax, %ss
> +
> + testl $1, beep_flags - wakeup_code
> + jz 1f
> + BEEP
> +1:
Can we rename/reuse existing flag variable?
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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