diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2009-12-23 18:02:41 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-12-25 14:15:41 +0100 |
| commit | 44eba3e82b35ae796826a65d8040001582adc10a (patch) | |
| tree | 93f9bcd409638b1685d231dfbd7b0ce2949c20db /sound/isa/sb/jazz16.c | |
| parent | 52e04ea89da57274f0313d2bd73ba02f686cfdeb (diff) | |
ALSA: jazz16: refine dma and irq selection
Narrow the dma and irq selection after the DOS driver.
Add ALSA configuration description as well.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/isa/sb/jazz16.c')
| -rw-r--r-- | sound/isa/sb/jazz16.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/sound/isa/sb/jazz16.c b/sound/isa/sb/jazz16.c index d52966b7584..8d21a3feda3 100644 --- a/sound/isa/sb/jazz16.c +++ b/sound/isa/sb/jazz16.c @@ -189,10 +189,29 @@ static int __devinit snd_jazz16_match(struct device *devptr, unsigned int dev) if (port[dev] == SNDRV_AUTO_PORT) { snd_printk(KERN_ERR "please specify port\n"); return 0; + } else if (port[dev] == 0x200 || (port[dev] & ~0x270)) { + snd_printk(KERN_ERR "incorrect port specified\n"); + return 0; + } + if (dma8[dev] != SNDRV_AUTO_DMA && + dma8[dev] != 1 && dma8[dev] != 3) { + snd_printk(KERN_ERR "dma8 must be 1 or 3\n"); + return 0; } if (dma16[dev] != SNDRV_AUTO_DMA && dma16[dev] != 5 && dma16[dev] != 7) { - snd_printk(KERN_ERR "dma16 must be 5 or 7"); + snd_printk(KERN_ERR "dma16 must be 5 or 7\n"); + return 0; + } + if (mpu_port[dev] != SNDRV_AUTO_PORT && + (mpu_port[dev] & ~0x030) != 0x300) { + snd_printk(KERN_ERR "incorrect mpu_port specified\n"); + return 0; + } + if (mpu_irq[dev] != SNDRV_AUTO_DMA && + mpu_irq[dev] != 2 && mpu_irq[dev] != 3 && + mpu_irq[dev] != 5 && mpu_irq[dev] != 7) { + snd_printk(KERN_ERR "mpu_irq must be 2, 3, 5 or 7\n"); return 0; } return 1; |