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path: root/arch/i386/kernel/acpi/wakeup.S
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Diffstat (limited to 'arch/i386/kernel/acpi/wakeup.S')
-rw-r--r--arch/i386/kernel/acpi/wakeup.S27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/i386/kernel/acpi/wakeup.S b/arch/i386/kernel/acpi/wakeup.S
index a2295a34b2c..b4e2ec3c392 100644
--- a/arch/i386/kernel/acpi/wakeup.S
+++ b/arch/i386/kernel/acpi/wakeup.S
@@ -13,6 +13,21 @@
# 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
ENTRY(wakeup_start)
@@ -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:
mov $(wakeup_stack - wakeup_code), %sp # Private stack is needed for ASUS board
movw $0x0e00 + 'S', %fs:(0x12)
@@ -88,6 +108,10 @@ wakeup_code:
cmpl $0x12345678, %eax
jne bogus_real_magic
+ testl $2, beep_flags - wakeup_code
+ jz 1f
+ BEEP
+1:
ljmpl $__KERNEL_CS,$wakeup_pmode_return
real_save_gdt: .word 0
@@ -98,6 +122,7 @@ real_save_cr4: .long 0
real_magic: .long 0
video_mode: .long 0
video_flags: .long 0
+beep_flags: .long 0
real_efer_save_restore: .long 0
real_save_efer_edx: .long 0
real_save_efer_eax: .long 0
@@ -262,6 +287,8 @@ ENTRY(acpi_copy_wakeup_routine)
movl %edx, video_mode - wakeup_start (%eax)
movl acpi_video_flags, %edx
movl %edx, video_flags - wakeup_start (%eax)
+ movl s2ram_beep, %edx
+ movl %edx, beep_flags - wakeup_start (%eax)
movl $0x12345678, real_magic - wakeup_start (%eax)
movl $0x12345678, saved_magic
popl %ebx