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Make OSS_GETVERSION ioctl really work. It has 'M' group, not 'P',

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as different nearby ones, and was grabbed by MIXER_xxx() handler.

While there, replace '(cmd & MIXER_xxx(0)) == MIXER_xxx(0)' expressions
with more correct '(cmd & ~0xff) == MIXER_READ(0)'. Use of bit operations
to compare numeric fields doesn't looks sane.

MFC after:	1 month
This commit is contained in:
Alexander Motin 2010-01-12 11:11:25 +00:00
parent 412f9500e2
commit 2fdb5f0b86
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202150
2 changed files with 32 additions and 42 deletions
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8
sys/dev/sound/pcm/dsp.c
View File

@ -1003,7 +1003,7 @@ dsp_ioctl_channel(struct cdev *dev, struct pcm_channel *volch, u_long cmd,
if (volch != NULL &&
((j == SOUND_MIXER_PCM && volch->direction == PCMDIR_PLAY) ||
(j == SOUND_MIXER_RECLEV && volch->direction == PCMDIR_REC))) {
if ((cmd & MIXER_WRITE(0)) == MIXER_WRITE(0)) {
if ((cmd & ~0xff) == MIXER_WRITE(0)) {
int left, right, center;
left = *(int *)arg & 0x7f;
@ -1011,7 +1011,7 @@ dsp_ioctl_channel(struct cdev *dev, struct pcm_channel *volch, u_long cmd,
center = (left + right) >> 1;
chn_setvolume_multi(volch, SND_VOL_C_PCM, left, right,
center);
} else if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
} else if ((cmd & ~0xff) == MIXER_READ(0)) {
*(int *)arg = CHN_GETVOLUME(volch,
SND_VOL_C_PCM, SND_CHN_T_FL);
*(int *)arg |= CHN_GETVOLUME(volch,
@ -1023,7 +1023,7 @@ dsp_ioctl_channel(struct cdev *dev, struct pcm_channel *volch, u_long cmd,
case SOUND_MIXER_DEVMASK:
case SOUND_MIXER_CAPS:
case SOUND_MIXER_STEREODEVS:
if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
if ((cmd & ~0xff) == MIXER_READ(0)) {
*(int *)arg = 0;
if (rdch != NULL)
*(int *)arg |= SOUND_MASK_RECLEV;
@ -1034,7 +1034,7 @@ dsp_ioctl_channel(struct cdev *dev, struct pcm_channel *volch, u_long cmd,
break;
case SOUND_MIXER_RECMASK:
case SOUND_MIXER_RECSRC:
if ((cmd & MIXER_READ(0)) == MIXER_READ(0))
if ((cmd & ~0xff) == MIXER_READ(0))
*(int *)arg = 0;
ret = 0;
break;

66
sys/dev/sound/pcm/mixer.c
View File

@ -1130,7 +1130,7 @@ mixer_ioctl_channel(struct cdev *dev, u_long cmd, caddr_t arg, int mode,
if ((j == SOUND_MIXER_DEVMASK || j == SOUND_MIXER_CAPS ||
j == SOUND_MIXER_STEREODEVS) &&
(cmd & MIXER_READ(0)) == MIXER_READ(0)) {
(cmd & ~0xff) == MIXER_READ(0)) {
snd_mtxlock(m->lock);
*(int *)arg = mix_getdevs(m);
snd_mtxunlock(m->lock);
@ -1148,14 +1148,14 @@ mixer_ioctl_channel_proc:
KASSERT(c != NULL, ("%s(): NULL channel", __func__));
CHN_LOCKASSERT(c);
if ((cmd & MIXER_WRITE(0)) == MIXER_WRITE(0)) {
if ((cmd & ~0xff) == MIXER_WRITE(0)) {
int left, right, center;
left = *(int *)arg & 0x7f;
right = (*(int *)arg >> 8) & 0x7f;
center = (left + right) >> 1;
chn_setvolume_multi(c, SND_VOL_C_PCM, left, right, center);
} else if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
} else if ((cmd & ~0xff) == MIXER_READ(0)) {
*(int *)arg = CHN_GETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_FL);
*(int *)arg |=
CHN_GETVOLUME(c, SND_VOL_C_PCM, SND_CHN_T_FR) << 8;
@ -1208,7 +1208,7 @@ mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
struct thread *td, int from)
{
struct snd_mixer *m;
int ret, *arg_i = (int *)arg;
int ret = EINVAL, *arg_i = (int *)arg;
int v = -1, j = cmd & 0xff;
/*
@ -1242,8 +1242,23 @@ mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
snd_mtxunlock(m->lock);
return (EBADF);
}
if ((cmd & MIXER_WRITE(0)) == MIXER_WRITE(0)) {
switch (cmd) {
case SNDCTL_DSP_GET_RECSRC_NAMES:
bcopy((void *)&m->enuminfo, arg, sizeof(oss_mixer_enuminfo));
ret = 0;
goto done;
case SNDCTL_DSP_GET_RECSRC:
ret = mixer_get_recroute(m, arg_i);
goto done;
case SNDCTL_DSP_SET_RECSRC:
ret = mixer_set_recroute(m, *arg_i);
goto done;
case OSS_GETVERSION:
*arg_i = SOUND_VERSION;
ret = 0;
goto done;
}
if ((cmd & ~0xff) == MIXER_WRITE(0)) {
if (j == SOUND_MIXER_RECSRC)
ret = mixer_setrecsrc(m, *arg_i);
else
@ -1251,23 +1266,19 @@ mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
snd_mtxunlock(m->lock);
return ((ret == 0) ? 0 : ENXIO);
}
if ((cmd & MIXER_READ(0)) == MIXER_READ(0)) {
if ((cmd & ~0xff) == MIXER_READ(0)) {
switch (j) {
case SOUND_MIXER_DEVMASK:
case SOUND_MIXER_CAPS:
case SOUND_MIXER_STEREODEVS:
case SOUND_MIXER_DEVMASK:
case SOUND_MIXER_CAPS:
case SOUND_MIXER_STEREODEVS:
v = mix_getdevs(m);
break;
case SOUND_MIXER_RECMASK:
case SOUND_MIXER_RECMASK:
v = mix_getrecdevs(m);
break;
case SOUND_MIXER_RECSRC:
case SOUND_MIXER_RECSRC:
v = mixer_getrecsrc(m);
break;
default:
v = mixer_get(m, j);
}
@ -1275,29 +1286,8 @@ mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode,
snd_mtxunlock(m->lock);
return ((v != -1) ? 0 : ENXIO);
}
ret = 0;
switch (cmd) {
case SNDCTL_DSP_GET_RECSRC_NAMES:
bcopy((void *)&m->enuminfo, arg, sizeof(oss_mixer_enuminfo));
break;
case SNDCTL_DSP_GET_RECSRC:
ret = mixer_get_recroute(m, arg_i);
break;
case SNDCTL_DSP_SET_RECSRC:
ret = mixer_set_recroute(m, *arg_i);
break;
case OSS_GETVERSION:
*arg_i = SOUND_VERSION;
break;
default:
ret = EINVAL;
break;
}
done:
snd_mtxunlock(m->lock);
return (ret);
}