hw/xfree86/os-support/bsd/bsd_apm.c

   1 #ifdef HAVE_XORG_CONFIG_H
   2 #include <xorg-config.h>
   3 #endif
   4
   5 #include <X11/X.h>
   6 #include "os.h"
   7 #include "xf86.h"
   8 #include "xf86Priv.h"
   9 #define XF86_OS_PRIVS
  10 #include "xf86_OSproc.h"
  11 #include "xf86_OSlib.h"
  12
  13 #include <machine/apmvar.h>
  14
  15 #define APM_DEVICE "/dev/apm"
  16
  17 static pointer APMihPtr = NULL;
  18 static void bsdCloseAPM(void);
  19
  20 static struct {
  21     u_int apmBsd;
  22     pmEvent xf86;
  23 } bsdToXF86Array[] = {
  24     {APM_STANDBY_REQ, XF86_APM_SYS_STANDBY},
  25     {APM_SUSPEND_REQ, XF86_APM_SYS_SUSPEND},
  26     {APM_NORMAL_RESUME, XF86_APM_NORMAL_RESUME},
  27     {APM_CRIT_RESUME, XF86_APM_CRITICAL_RESUME},
  28     {APM_BATTERY_LOW, XF86_APM_LOW_BATTERY},
  29     {APM_POWER_CHANGE, XF86_APM_POWER_STATUS_CHANGE},
  30     {APM_UPDATE_TIME, XF86_APM_UPDATE_TIME},
  31     {APM_CRIT_SUSPEND_REQ, XF86_APM_CRITICAL_SUSPEND},
  32     {APM_USER_STANDBY_REQ, XF86_APM_USER_STANDBY},
  33     {APM_USER_SUSPEND_REQ, XF86_APM_USER_SUSPEND},
  34     {APM_SYS_STANDBY_RESUME, XF86_APM_STANDBY_RESUME},
  35 #ifdef APM_CAPABILITY_CHANGE
  36     {APM_CAPABILITY_CHANGE, XF86_APM_CAPABILITY_CHANGED},
  37 #endif
  38 };
  39
  40 #define numApmEvents (sizeof(bsdToXF86Array) / sizeof(bsdToXF86Array[0]))
  41
  42 static pmEvent
  43 bsdToXF86(int type)
  44 {
  45     int i;
  46
  47     for (i = 0; i < numApmEvents; i++) {
  48         if (type == bsdToXF86Array[i].apmBsd) {
  49             return bsdToXF86Array[i].xf86;
  50         }
  51     }
  52     return XF86_APM_UNKNOWN;
  53 }
  54
  55 /*
  56  * APM events can be requested direclty from /dev/apm
  57  */
  58 static int
  59 bsdPMGetEventFromOS(int fd, pmEvent * events, int num)
  60 {
  61     struct apm_event_info bsdEvent;
  62     int i;
  63
  64     for (i = 0; i < num; i++) {
  65
  66         if (ioctl(fd, APM_IOC_NEXTEVENT, &bsdEvent) < 0) {
  67             if (errno != EAGAIN) {
  68                 xf86Msg(X_WARNING, "bsdPMGetEventFromOS: APM_IOC_NEXTEVENT"
  69                         " %s\n", strerror(errno));
  70             }
  71             break;
  72         }
  73         events[i] = bsdToXF86(bsdEvent.type);
  74     }
  75     return i;
  76 }
  77
  78 /*
  79  * XXX This won't work on /dev/apm !
  80  *     We should either use /dev/apm_ctl (and kill apmd(8))
  81  *     or talk to apmd (but its protocol is not publically available)...
  82  */
  83 static pmWait
  84 bsdPMConfirmEventToOs(int fd, pmEvent event)
  85 {
  86     switch (event) {
  87     case XF86_APM_SYS_STANDBY:
  88     case XF86_APM_USER_STANDBY:
  89         if (ioctl(fd, APM_IOC_STANDBY, NULL) == 0)
  90             return PM_WAIT;     /* should we stop the Xserver in standby, too? */
  91         else
  92             return PM_NONE;
  93     case XF86_APM_SYS_SUSPEND:
  94     case XF86_APM_CRITICAL_SUSPEND:
  95     case XF86_APM_USER_SUSPEND:
  96         if (ioctl(fd, APM_IOC_SUSPEND, NULL) == 0)
  97             return PM_WAIT;
  98         else
  99             return PM_NONE;
 100     case XF86_APM_STANDBY_RESUME:
 101     case XF86_APM_NORMAL_RESUME:
 102     case XF86_APM_CRITICAL_RESUME:
 103     case XF86_APM_STANDBY_FAILED:
 104     case XF86_APM_SUSPEND_FAILED:
 105         return PM_CONTINUE;
 106     default:
 107         return PM_NONE;
 108     }
 109 }
 110
 111 PMClose
 112 xf86OSPMOpen(void)
 113 {
 114     int fd;
 115
 116     if (APMihPtr || !xf86Info.pmFlag) {
 117         return NULL;
 118     }
 119
 120     if ((fd = open(APM_DEVICE, O_RDWR)) == -1) {
 121         return NULL;
 122     }
 123     xf86PMGetEventFromOs = bsdPMGetEventFromOS;
 124     xf86PMConfirmEventToOs = bsdPMConfirmEventToOs;
 125     APMihPtr = xf86AddGeneralHandler(fd, xf86HandlePMEvents, NULL);
 126     return bsdCloseAPM;
 127 }
 128
 129 static void
 130 bsdCloseAPM(void)
 131 {
 132     int fd;
 133
 134     if (APMihPtr) {
 135         fd = xf86RemoveGeneralHandler(APMihPtr);
 136         close(fd);
 137         APMihPtr = NULL;
 138     }
 139 }