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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/hw/xfree86/os-support/linux/lnx_apm.c
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Checked in the following released items:
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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/linux/lnx_apm.c')
-rw-r--r--xorg-server/hw/xfree86/os-support/linux/lnx_apm.c206
1 files changed, 206 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/linux/lnx_apm.c b/xorg-server/hw/xfree86/os-support/linux/lnx_apm.c
new file mode 100644
index 000000000..16ac80db8
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/linux/lnx_apm.c
@@ -0,0 +1,206 @@
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "os.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#define XF86_OS_PRIVS
+#include "xf86_OSproc.h"
+
+#ifdef HAVE_ACPI
+extern PMClose lnxACPIOpen(void);
+#endif
+
+#ifdef HAVE_APM
+
+#include "lnx.h"
+#include <linux/apm_bios.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#define APM_PROC "/proc/apm"
+#define APM_DEVICE "/dev/apm_bios"
+
+#ifndef APM_STANDBY_FAILED
+# define APM_STANDBY_FAILED 0xf000
+#endif
+#ifndef APM_SUSPEND_FAILED
+# define APM_SUSPEND_FAILED 0xf001
+#endif
+
+static PMClose lnxAPMOpen(void);
+static void lnxCloseAPM(void);
+static pointer APMihPtr = NULL;
+
+static struct {
+ apm_event_t apmLinux;
+ pmEvent xf86;
+} LinuxToXF86[] = {
+ { APM_SYS_STANDBY, XF86_APM_SYS_STANDBY },
+ { APM_SYS_SUSPEND, XF86_APM_SYS_SUSPEND },
+ { APM_NORMAL_RESUME, XF86_APM_NORMAL_RESUME },
+ { APM_CRITICAL_RESUME, XF86_APM_CRITICAL_RESUME },
+ { APM_LOW_BATTERY, XF86_APM_LOW_BATTERY },
+ { APM_POWER_STATUS_CHANGE, XF86_APM_POWER_STATUS_CHANGE },
+ { APM_UPDATE_TIME, XF86_APM_UPDATE_TIME },
+ { APM_CRITICAL_SUSPEND, XF86_APM_CRITICAL_SUSPEND },
+ { APM_USER_STANDBY, XF86_APM_USER_STANDBY },
+ { APM_USER_SUSPEND, XF86_APM_USER_SUSPEND },
+ { APM_STANDBY_RESUME, XF86_APM_STANDBY_RESUME },
+#if defined(APM_CAPABILITY_CHANGED)
+ { APM_CAPABILITY_CHANGED, XF86_CAPABILITY_CHANGED },
+#endif
+#if 0
+ { APM_STANDBY_FAILED, XF86_APM_STANDBY_FAILED },
+ { APM_SUSPEND_FAILED, XF86_APM_SUSPEND_FAILED }
+#endif
+};
+
+#define numApmEvents (sizeof(LinuxToXF86) / sizeof(LinuxToXF86[0]))
+
+/*
+ * APM is still under construction.
+ * I'm not sure if the places where I initialize/deinitialize
+ * apm is correct. Also I don't know what to do in SETUP state.
+ * This depends if wakeup gets called in this situation, too.
+ * Also we need to check if the action that is taken on an
+ * event is reasonable.
+ */
+static int
+lnxPMGetEventFromOs(int fd, pmEvent *events, int num)
+{
+ int i,j,n;
+ apm_event_t linuxEvents[8];
+
+ if ((n = read( fd, linuxEvents, num * sizeof(apm_event_t) )) == -1)
+ return 0;
+ n /= sizeof(apm_event_t);
+ if (n > num)
+ n = num;
+ for (i = 0; i < n; i++) {
+ for (j = 0; j < numApmEvents; j++)
+ if (LinuxToXF86[j].apmLinux == linuxEvents[i]) {
+ events[i] = LinuxToXF86[j].xf86;
+ break;
+ }
+ if (j == numApmEvents)
+ events[i] = XF86_APM_UNKNOWN;
+ }
+ return n;
+}
+
+static pmWait
+lnxPMConfirmEventToOs(int fd, pmEvent event)
+{
+ switch (event) {
+ case XF86_APM_SYS_STANDBY:
+ case XF86_APM_USER_STANDBY:
+ if (ioctl( fd, APM_IOC_STANDBY, NULL ))
+ return PM_FAILED;
+ return PM_CONTINUE;
+ case XF86_APM_SYS_SUSPEND:
+ case XF86_APM_CRITICAL_SUSPEND:
+ case XF86_APM_USER_SUSPEND:
+ if (ioctl( fd, APM_IOC_SUSPEND, NULL )) {
+ /* I believe this is wrong (EE)
+ EBUSY is sent when a device refuses to be suspended.
+ In this case we still need to undo everything we have
+ done to suspend ourselves or we will stay in suspended
+ state forever. */
+ if (errno == EBUSY)
+ return PM_CONTINUE;
+ else
+ return PM_FAILED;
+ }
+ return PM_CONTINUE;
+ case XF86_APM_STANDBY_RESUME:
+ case XF86_APM_NORMAL_RESUME:
+ case XF86_APM_CRITICAL_RESUME:
+ case XF86_APM_STANDBY_FAILED:
+ case XF86_APM_SUSPEND_FAILED:
+ return PM_CONTINUE;
+ default:
+ return PM_NONE;
+ }
+}
+
+#endif // HAVE_APM
+
+PMClose
+xf86OSPMOpen(void)
+{
+ PMClose ret = NULL;
+
+#ifdef HAVE_ACPI
+ /* Favour ACPI over APM, but only when enabled */
+
+ if (!xf86acpiDisableFlag)
+ ret = lnxACPIOpen();
+
+ if (!ret)
+#endif
+#ifdef HAVE_APM
+ ret = lnxAPMOpen();
+#endif
+
+ return ret;
+}
+
+#ifdef HAVE_APM
+
+static PMClose
+lnxAPMOpen(void)
+{
+ int fd, pfd;
+
+#ifdef DEBUG
+ ErrorF("APM: OSPMOpen called\n");
+#endif
+ if (APMihPtr || !xf86Info.pmFlag)
+ return NULL;
+
+#ifdef DEBUG
+ ErrorF("APM: Opening device\n");
+#endif
+ if ((fd = open( APM_DEVICE, O_RDWR )) > -1) {
+ if (access( APM_PROC, R_OK ) ||
+ ((pfd = open( APM_PROC, O_RDONLY)) == -1)) {
+ xf86MsgVerb(X_WARNING,3,"Cannot open APM (%s) (%s)\n",
+ APM_PROC, strerror(errno));
+ close(fd);
+ return NULL;
+ } else
+ close(pfd);
+ xf86PMGetEventFromOs = lnxPMGetEventFromOs;
+ xf86PMConfirmEventToOs = lnxPMConfirmEventToOs;
+ APMihPtr = xf86AddInputHandler(fd,xf86HandlePMEvents,NULL);
+ xf86MsgVerb(X_INFO,3,"Open APM successful\n");
+ return lnxCloseAPM;
+ }
+ xf86MsgVerb(X_INFO,3,"No APM support in BIOS or kernel\n");
+ return NULL;
+}
+
+static void
+lnxCloseAPM(void)
+{
+ int fd;
+
+#ifdef DEBUG
+ ErrorF("APM: Closing device\n");
+#endif
+ if (APMihPtr) {
+ fd = xf86RemoveInputHandler(APMihPtr);
+ close(fd);
+ APMihPtr = NULL;
+ }
+}
+
+#endif // HAVE_APM