1 files changed, 166 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/linux/lnx_apm.c b/hw/xfree86/os-support/linux/lnx_apm.c
new file mode 100644
index 000000000..f2f326959
--- /dev/null
+++ b/hw/xfree86/os-support/linux/lnx_apm.c
@@ -0,0 +1,166 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/lnx_apm.c,v 3.13 2002/10/16 01:24:28 dawes Exp $ */
+
+#include "X.h"
+#include "os.h"
+#include "xf86.h"
+#include "xf86Priv.h"
+#define XF86_OS_PRIVS
+#include "xf86_OSproc.h"
+#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 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 )) {
+	    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;
+    }
+}
+
+PMClose
+xf86OSPMOpen(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_WARNING,3,"Open APM failed (%s) (%s)\n", APM_DEVICE,
+		strerror(errno));
+    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;
+    }
+}
+