diff options
Diffstat (limited to 'sound/isa/sb/sb16_main.c')
| -rw-r--r-- | sound/isa/sb/sb16_main.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/sound/isa/sb/sb16_main.c b/sound/isa/sb/sb16_main.c index a9b87e159b2d..5a083eecaa6b 100644 --- a/sound/isa/sb/sb16_main.c +++ b/sound/isa/sb/sb16_main.c @@ -703,6 +703,9 @@ static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ct unsigned char nval, oval; int change; + if (chip->mode & (SB_MODE_PLAYBACK | SB_MODE_CAPTURE)) + return -EBUSY; + nval = ucontrol->value.enumerated.item[0]; if (nval > 2) return -EINVAL; @@ -711,6 +714,10 @@ static int snd_sb16_dma_control_put(struct snd_kcontrol *kcontrol, struct snd_ct change = nval != oval; snd_sb16_set_dma_mode(chip, nval); spin_unlock_irqrestore(&chip->reg_lock, flags); + if (change) { + snd_dma_disable(chip->dma8); + snd_dma_disable(chip->dma16); + } return change; } @@ -733,7 +740,6 @@ int snd_sb16dsp_configure(struct snd_sb * chip) unsigned char realirq, realdma, realmpureg; /* note: mpu register should be present only on SB16 Vibra soundcards */ - // printk(KERN_DEBUG "codec->irq=%i, codec->dma8=%i, codec->dma16=%i\n", chip->irq, chip->dma8, chip->dma16); spin_lock_irqsave(&chip->mixer_lock, flags); mpureg = snd_sbmixer_read(chip, SB_DSP4_MPUSETUP) & ~0x06; spin_unlock_irqrestore(&chip->mixer_lock, flags); @@ -807,9 +813,15 @@ int snd_sb16dsp_configure(struct snd_sb * chip) spin_unlock_irqrestore(&chip->mixer_lock, flags); if ((~realirq) & irqreg || (~realdma) & dmareg) { - snd_printk(KERN_ERR "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n", chip->port); - snd_printk(KERN_ERR "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, realirq, realdma, realmpureg); - snd_printk(KERN_ERR "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", chip->port, irqreg, dmareg, mpureg); + dev_err(chip->card->dev, + "SB16 [0x%lx]: unable to set DMA & IRQ (PnP device?)\n", + chip->port); + dev_err(chip->card->dev, + "SB16 [0x%lx]: wanted: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", + chip->port, realirq, realdma, realmpureg); + dev_err(chip->card->dev, + "SB16 [0x%lx]: got: irqreg=0x%x, dmareg=0x%x, mpureg = 0x%x\n", + chip->port, irqreg, dmareg, mpureg); return -ENODEV; } return 0; |