}
+float CDAudio_SysGetVolume (void)
+{
+ struct cdrom_volctrl vol;
+
+ if (cdfile == -1)
+ return -1.0f;
+
+ if (ioctl (cdfile, CDROMVOLREAD, &vol) == -1)
+ {
+ Con_DPrint("ioctl CDROMVOLREAD failed\n");
+ return -1.0f;
+ }
+
+ return (vol.channel0 + vol.channel1) / 2.0f / 255.0f;
+}
+
+
+void CDAudio_SysSetVolume (float volume)
+{
+ struct cdrom_volctrl vol;
+
+ if (cdfile == -1)
+ return;
+
+ vol.channel0 = vol.channel1 = volume * 255;
+ if (ioctl (cdfile, CDROMVOLCTRL, &vol) == -1)
+ Con_DPrint("ioctl CDROMVOLCTRL failed\n");
+}
+
+
int CDAudio_SysPlay (qbyte track)
{
struct cdrom_tocentry entry;