diff options
Diffstat (limited to 'arch/x86_64/kernel/acpi')
| -rw-r--r-- | arch/x86_64/kernel/acpi/sleep.c | 8 | ||||
| -rw-r--r-- | arch/x86_64/kernel/acpi/wakeup.S | 32 |
2 files changed, 32 insertions, 8 deletions
diff --git a/arch/x86_64/kernel/acpi/sleep.c b/arch/x86_64/kernel/acpi/sleep.c index 195b7034a14..4277f2b27e6 100644 --- a/arch/x86_64/kernel/acpi/sleep.c +++ b/arch/x86_64/kernel/acpi/sleep.c @@ -55,7 +55,7 @@ /* address in low memory of the wakeup routine. */ unsigned long acpi_wakeup_address = 0; -unsigned long acpi_video_flags; +unsigned long acpi_realmode_flags; extern char wakeup_start, wakeup_end; extern unsigned long acpi_copy_wakeup_routine(unsigned long); @@ -103,9 +103,11 @@ static int __init acpi_sleep_setup(char *str) { while ((str != NULL) && (*str != '\0')) { if (strncmp(str, "s3_bios", 7) == 0) - acpi_video_flags = 1; + acpi_realmode_flags |= 1; if (strncmp(str, "s3_mode", 7) == 0) - acpi_video_flags |= 2; + acpi_realmode_flags |= 2; + if (strncmp(str, "s3_beep", 7) == 0) + acpi_realmode_flags |= 4; str = strchr(str, ','); if (str != NULL) str += strspn(str, ", \t"); diff --git a/arch/x86_64/kernel/acpi/wakeup.S b/arch/x86_64/kernel/acpi/wakeup.S index 8550a6ffa27..13f1480cbec 100644 --- a/arch/x86_64/kernel/acpi/wakeup.S +++ b/arch/x86_64/kernel/acpi/wakeup.S @@ -16,6 +16,21 @@ # 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 16 @@ -33,6 +48,13 @@ wakeup_code: movw %cs, %ax movw %ax, %ds # Make ds:0 point to wakeup_start movw %ax, %ss + + # Data segment must be set up before we can see whether to beep. + testl $4, realmode_flags - wakeup_code + jz 1f + BEEP +1: + # Private stack is needed for ASUS board mov $(wakeup_stack - wakeup_code), %sp @@ -48,7 +70,7 @@ wakeup_code: testl %eax, %eax jnz no_longmode - testl $1, video_flags - wakeup_code + testl $1, realmode_flags - wakeup_code jz 1f lcall $0xc000,$3 movw %cs, %ax @@ -56,7 +78,7 @@ wakeup_code: movw %ax, %ss 1: - testl $2, video_flags - wakeup_code + testl $2, realmode_flags - wakeup_code jz 1f mov video_mode - wakeup_code, %ax call mode_seta @@ -230,7 +252,7 @@ gdt_48a: real_magic: .quad 0 video_mode: .quad 0 -video_flags: .quad 0 +realmode_flags: .quad 0 .code16 bogus_real_magic: @@ -346,8 +368,8 @@ ENTRY(acpi_copy_wakeup_routine) movl saved_video_mode, %edx movl %edx, video_mode - wakeup_start (,%rdi) - movl acpi_video_flags, %edx - movl %edx, video_flags - wakeup_start (,%rdi) + movl acpi_realmode_flags, %edx + movl %edx, realmode_flags - wakeup_start (,%rdi) movq $0x12345678, real_magic - wakeup_start (,%rdi) movq $0x123456789abcdef0, %rdx movq %rdx, saved_magic |