diff options
Diffstat (limited to 'shutdown/acpi_shutdown.c')
-rw-r--r-- | shutdown/acpi_shutdown.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/shutdown/acpi_shutdown.c b/shutdown/acpi_shutdown.c deleted file mode 100644 index fde70111..00000000 --- a/shutdown/acpi_shutdown.c +++ /dev/null @@ -1,66 +0,0 @@ -#include <stdio.h> -#include <errno.h> -#include <inttypes.h> -#include <stdlib.h> -#include <sys/io.h> -#include <mach.h> -#include "acpi_shutdown.h" - -void disappear_via_acpi(void) -{ - uint16_t i, pm1a_ctl, smi_cmd; - uint8_t regbuf[2], acpi_en; - FILE *facp; - - /* Open the ACPI FADT table */ - facp = fopen(SERVERS_ACPI_FADT, "r"); - if (!facp) - exit(errno); - - /* Grab value to write to SMI_CMD to enable ACPI */ - fseek(facp, SMI_EN_OFFSET, SEEK_SET); - fread(&acpi_en, 1, 1, facp); - - /* Grab SMI_CMD I/O port */ - fseek(facp, SMI_CMD_OFFSET, SEEK_SET); - fread(regbuf, 2, 1, facp); - smi_cmd = (uint16_t)regbuf[0] | - ((uint16_t)regbuf[1] << 8); - - /* Grab PM1a Control I/O port */ - fseek(facp, PM1A_CTL_OFFSET, SEEK_SET); - fread(regbuf, 2, 1, facp); - pm1a_ctl = (uint16_t)regbuf[0] | - ((uint16_t)regbuf[1] << 8); - - /* Close the ACPI FADT table */ - fclose(facp); - - /* Get I/O permissions */ - if (ioperm(smi_cmd, 2, 1)) { - fprintf(stderr, "EPERM on ioperm(smi_cmd)\n"); - return; - } - if (ioperm(pm1a_ctl, 2, 1)) { - fprintf(stderr, "EPERM on ioperm(pm1a_ctl)\n"); - return; - } - - /* Enable ACPI */ - outb(acpi_en, smi_cmd); - for (i = 0; i < 300; i++) - { - if ( (inw(pm1a_ctl) & SCI_EN) == SCI_EN) - break; - } - - /* Kill machine */ - - /* try sleep state 5 first */ - outw(SLP_TYP5 | SLP_EN, pm1a_ctl); - - /* if we reach here then above did not work */ - outw(SLP_TYP0 | SLP_EN, pm1a_ctl); - - /* Never reached */ -} |