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tidy up/simplify dsp_clone()

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This commit is contained in:
Cameron Grant 2001-06-27 19:51:02 +00:00
parent d1b402ad6f
commit aa0baad55b
1 changed files with 13 additions and 24 deletions
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37
sys/dev/sound/pcm/dsp.c
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@ -1027,36 +1027,25 @@ dsp_clone(void *arg, char *name, int namelen, dev_t *dev)
{
dev_t pdev;
int i, cont, unit, devtype;
int devtypes[3] = {SND_DEV_DSP, SND_DEV_DSP16, SND_DEV_AUDIO};
char *devnames[3] = {"dsp", "dspW", "audio"};
if (*dev != NODEV)
return;
if (pcm_devclass == NULL)
return;
devtype = 0;
unit = -1;
devtype = SND_DEV_DSP;
if (strcmp(name, "dsp") == 0) {
unit = snd_unit;
goto gotit;
} else if (dev_stdclone(name, NULL, "dsp", &unit) == 1)
goto gotit;
devtype = SND_DEV_DSP16;
if (strcmp(name, "dspW") == 0) {
unit = snd_unit;
goto gotit;
} else if (dev_stdclone(name, NULL, "dspW", &unit) == 1)
goto gotit;
devtype = SND_DEV_AUDIO;
if (strcmp(name, "audio") == 0) {
unit = snd_unit;
goto gotit;
} else if (dev_stdclone(name, NULL, "audio", &unit) == 1)
goto gotit;
return;
gotit:
for (i = 0; (i < 3) && (unit == -1); i++) {
devtype = devtypes[i];
if (strcmp(name, devnames[i]) == 0) {
unit = snd_unit;
} else {
if (dev_stdclone(name, NULL, devnames[i], &unit) != 1)
unit = -1;
}
}
if (unit == -1 || unit >= devclass_get_maxunit(pcm_devclass))
return;