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ALSA: jazz16: refine dma and irq selection

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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>
This commit is contained in:
Krzysztof Helt 2009-12-23 18:02:41 +01:00 committed by Takashi Iwai
parent 52e04ea89d
commit 44eba3e82b
3 changed files with 37 additions and 2 deletions
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15
Documentation/sound/alsa/ALSA-Configuration.txt
View File

@ -1123,6 +1123,21 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
This module supports multiple cards, autoprobe and ISA PnP.
Module snd-jazz16
-------------------
Module for Media Vision Jazz16 chipset. The chipset consists of 3 chips:
MVD1216 + MVA416 + MVA514.
port - port # for SB DSP chip (0x210,0x220,0x230,0x240,0x250,0x260)
irq - IRQ # for SB DSP chip (3,5,7,9,10,15)
dma8 - DMA # for SB DSP chip (1,3)
dma16 - DMA # for SB DSP chip (5,7)
mpu_port - MPU-401 port # (0x300,0x310,0x320,0x330)
mpu_irq - MPU-401 irq # (2,3,5,7)
This module supports multiple cards.
Module snd-korg1212
-------------------

21
sound/isa/sb/jazz16.c
View File

@ -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;

3
sound/isa/sb/sb8_main.c
View File

@ -510,7 +510,8 @@ static int snd_sb8_open(struct snd_pcm_substream *substream)
}
switch (chip->hardware) {
case SB_HW_JAZZ16:
runtime->hw.formats |= SNDRV_PCM_FMTBIT_S16_LE;
if (chip->dma16 == 5 || chip->dma16 == 7)
runtime->hw.formats |= SNDRV_PCM_FMTBIT_S16_LE;
runtime->hw.rates |= SNDRV_PCM_RATE_8000_48000;
runtime->hw.rate_min = 4000;
runtime->hw.rate_max = 50000;