diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-audio.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-audio.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index 302553a7f83..56739a46216 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -464,6 +464,13 @@ static int em28xx_vol_put(struct snd_kcontrol *kcontrol, val |= rc & 0x8000; /* Preserve the mute flag */ rc = em28xx_write_ac97(dev, kcontrol->private_value, val); + if (rc < 0) + goto err; + + dprintk("%sleft vol %d, right vol %d (0x%04x) to ac97 volume control 0x%04x\n", + (val & 0x8000) ? "muted " : "", + 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f), + val, (int)kcontrol->private_value); err: mutex_unlock(&dev->lock); @@ -482,6 +489,11 @@ static int em28xx_vol_get(struct snd_kcontrol *kcontrol, if (val < 0) return val; + dprintk("%sleft vol %d, right vol %d (0x%04x) from ac97 volume control 0x%04x\n", + (val & 0x8000) ? "muted " : "", + 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f), + val, (int)kcontrol->private_value); + value->value.integer.value[0] = 0x1f - (val & 0x1f); value->value.integer.value[1] = 0x1f - ((val << 8) & 0x1f); @@ -506,6 +518,13 @@ static int em28xx_vol_put_mute(struct snd_kcontrol *kcontrol, rc |= 0x8000; rc = em28xx_write_ac97(dev, kcontrol->private_value, rc); + if (rc < 0) + goto err; + + dprintk("%sleft vol %d, right vol %d (0x%04x) to ac97 volume control 0x%04x\n", + (val & 0x8000) ? "muted " : "", + 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f), + val, (int)kcontrol->private_value); err: mutex_unlock(&dev->lock); @@ -529,6 +548,11 @@ static int em28xx_vol_get_mute(struct snd_kcontrol *kcontrol, else value->value.integer.value[0] = 1; + dprintk("%sleft vol %d, right vol %d (0x%04x) from ac97 volume control 0x%04x\n", + (val & 0x8000) ? "muted " : "", + 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f), + val, (int)kcontrol->private_value); + return 0; } @@ -556,6 +580,8 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev, err = snd_ctl_add(card, kctl); if (err < 0) return err; + dprintk("Added control %s for ac97 volume control 0x%04x\n", + ctl_name, id); memset (&tmp, 0, sizeof(tmp)); tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER, @@ -572,6 +598,8 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev, err = snd_ctl_add(card, kctl); if (err < 0) return err; + dprintk("Added control %s for ac97 volume control 0x%04x\n", + ctl_name, id); return 0; } |