Date: Thu, 23 Feb 2012 22:00:31 +0000 (UTC) From: Jung-uk Kim <jkim@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r232081 - stable/9/sys/amd64/acpica Message-ID: <201202232200.q1NM0VdB025221@svn.freebsd.org>
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Author: jkim Date: Thu Feb 23 22:00:31 2012 New Revision: 232081 URL: http://svn.freebsd.org/changeset/base/232081 Log: MFC: r231787 Make ACPI resume beeper less cryptic. Set PIC timer2 mode properly. Modified: stable/9/sys/amd64/acpica/acpi_wakecode.S Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/amd64/acpica/acpi_wakecode.S ============================================================================== --- stable/9/sys/amd64/acpica/acpi_wakecode.S Thu Feb 23 21:56:53 2012 (r232080) +++ stable/9/sys/amd64/acpica/acpi_wakecode.S Thu Feb 23 22:00:31 2012 (r232081) @@ -30,7 +30,9 @@ */ #include <machine/asmacros.h> +#include <machine/ppireg.h> #include <machine/specialreg.h> +#include <machine/timerreg.h> #include "assym.s" @@ -71,13 +73,21 @@ wakeup_start: testb $~0, resume_beep - wakeup_start jz 1f movb $0, resume_beep - wakeup_start - movb $0xc0, %al - outb %al, $0x42 - movb $0x04, %al - outb %al, $0x42 - inb $0x61, %al - orb $0x3, %al - outb %al, $0x61 + + /* Set PIC timer2 to beep. */ + movb $(TIMER_SEL2 | TIMER_SQWAVE | TIMER_16BIT), %al + outb %al, $TIMER_MODE + + /* Turn on speaker. */ + inb $IO_PPI, %al + orb $PIT_SPKR, %al + outb %al, $IO_PPI + + /* Set frequency. */ + movw $0x4c0, %ax + outb %al, $TIMER_CNTR2 + shrw $8, %ax + outb %al, $TIMER_CNTR2 1: /* Re-initialize video BIOS if the reset_video tunable is set. */
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