diff options
Diffstat (limited to 'hw/xfree86/os-support/bsd/bsd_kqueue_apm.c')
| -rw-r--r-- | hw/xfree86/os-support/bsd/bsd_kqueue_apm.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/hw/xfree86/os-support/bsd/bsd_kqueue_apm.c b/hw/xfree86/os-support/bsd/bsd_kqueue_apm.c new file mode 100644 index 000000000..53fe8c3be --- /dev/null +++ b/hw/xfree86/os-support/bsd/bsd_kqueue_apm.c @@ -0,0 +1,199 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/os-support/bsd/bsd_kqueue_apm.c,v 1.5 2002/07/30 23:24:32 herrb Exp $ */ +/* + * Copyright (C) 2001 The XFree86 Project, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES + * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Except as contained in this notice, the name of the XFree86 Project + * shall not be used in advertising or otherwise to promote the sale, use + * or other dealings in this Software without prior written authorization + * from the XFree86 Project. + */ +/* $OpenBSD: bsd_kqueue_apm.c,v 1.5 2002/07/30 23:07:42 matthieu Exp $ */ + +#include "X.h" +#include "os.h" +#include "xf86.h" +#include "xf86Priv.h" +#define XF86_OS_PRIVS +#include "xf86_OSproc.h" +#include "xf86_OSlib.h" + +#include <sys/event.h> +#include <machine/apmvar.h> + +#define _PATH_APM_SOCKET "/var/run/apmdev" +#define _PATH_APM_DEV "/dev/apm" +#define _PATH_APM_CTLDEV "/dev/apmctl" + +static pointer APMihPtr = NULL; +static int devFd = -1; +static int ctlFd = -1; +static void bsdCloseAPM(void); + +static struct { + u_int apmBsd; + pmEvent xf86; +} bsdToXF86Array [] = { + { APM_STANDBY_REQ, XF86_APM_SYS_STANDBY }, + { APM_SUSPEND_REQ, XF86_APM_SYS_SUSPEND }, + { APM_NORMAL_RESUME, XF86_APM_NORMAL_RESUME }, + { APM_CRIT_RESUME, XF86_APM_CRITICAL_RESUME }, + { APM_BATTERY_LOW, XF86_APM_LOW_BATTERY }, + { APM_POWER_CHANGE, XF86_APM_POWER_STATUS_CHANGE }, + { APM_UPDATE_TIME, XF86_APM_UPDATE_TIME }, + { APM_CRIT_SUSPEND_REQ, XF86_APM_CRITICAL_SUSPEND }, + { APM_USER_STANDBY_REQ, XF86_APM_USER_STANDBY }, + { APM_USER_SUSPEND_REQ, XF86_APM_USER_SUSPEND }, + { APM_SYS_STANDBY_RESUME, XF86_APM_STANDBY_RESUME }, +#ifdef APM_CAPABILITY_CHANGE + { APM_CAPABILITY_CHANGE, XF86_APM_CAPABILITY_CHANGED }, +#endif +}; + +#define numApmEvents (sizeof(bsdToXF86Array) / sizeof(bsdToXF86Array[0])) + +static pmEvent +bsdToXF86(int type) +{ + int i; + + for (i = 0; i < numApmEvents; i++) { + if (type == bsdToXF86Array[i].apmBsd) { + return bsdToXF86Array[i].xf86; + } + } + return XF86_APM_UNKNOWN; +} + +/* + * APM events can be requested direclty from /dev/apm + */ +static int +bsdPMGetEventFromOS(int kq, pmEvent *events, int num) +{ + struct kevent ev; + int i, result; + struct timespec ts = { 0, 0 }; + + for (i = 0; i < num; i++) { + result = kevent(kq, NULL, 0, &ev, 1, &ts); + if (result == 0 || APM_EVENT_TYPE(ev.data) == APM_NOEVENT) { + /* no event */ + break; + } else if (result < 0) { + xf86Msg(X_WARNING, "bsdPMGetEventFromOS: kevent returns" + " errno = %d\n", errno); + break; + } + events[i] = bsdToXF86(APM_EVENT_TYPE(ev.data)); + } + return i; +} + +/* + * If apmd(8) is running, he will get the events and handle them, + * so, we've nothing to do here. + * Otherwise, opening /dev/apmctl will succeed and we have to send the + * confirmations to /dev/apmctl. + */ +static pmWait +bsdPMConfirmEventToOs(int dummyfd, pmEvent event) +{ + if (ctlFd < 0) { + if ((ctlFd = open(_PATH_APM_CTLDEV, O_RDWR)) < 0) { + return PM_NONE; + } + } + /* apmctl open succeedeed */ + switch (event) { + case XF86_APM_SYS_STANDBY: + case XF86_APM_USER_STANDBY: + if (ioctl( ctlFd, APM_IOC_STANDBY, NULL ) == 0) + return PM_WAIT; /* should we stop the Xserver in standby, too? */ + else + return PM_NONE; + + case XF86_APM_SYS_SUSPEND: + case XF86_APM_CRITICAL_SUSPEND: + case XF86_APM_USER_SUSPEND: + if (ioctl( ctlFd, APM_IOC_SUSPEND, NULL ) == 0) + return PM_WAIT; + else + return PM_NONE; + break; + 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; + break; + default: + return PM_NONE; + } +} + +PMClose +xf86OSPMOpen(void) +{ + int kq; + struct kevent ev; + + if (APMihPtr || !xf86Info.pmFlag) { + return NULL; + } + if ((devFd = open(_PATH_APM_DEV, O_RDONLY)) == -1) { + return NULL; + } + if ((kq = kqueue()) <= 0) { + close(devFd); + return NULL; + } + EV_SET(&ev, devFd, EVFILT_READ, EV_ADD | EV_ENABLE | EV_CLEAR, + 0, 0, NULL); + if (kevent(kq, &ev, 1, NULL, 0, NULL) < 0) { + close(devFd); + return NULL; + } + + xf86PMGetEventFromOs = bsdPMGetEventFromOS; + xf86PMConfirmEventToOs = bsdPMConfirmEventToOs; + APMihPtr = xf86AddInputHandler(kq, xf86HandlePMEvents, NULL); + return bsdCloseAPM; +} + +static void +bsdCloseAPM(void) +{ + int kq; + + if (APMihPtr) { + kq = xf86RemoveInputHandler(APMihPtr); + close(devFd); + devFd = -1; + close(kq); + if (ctlFd >= 0) { + close(ctlFd); + ctlFd = -1; + } + APMihPtr = NULL; + } +} |