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Commit 44eba3e8 authored by Krzysztof Helt's avatar Krzysztof Helt Committed by Takashi Iwai
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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: default avatarKrzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 52e04ea8

Documentation/sound/alsa/ALSA-Configuration.txt

+15 −0
Original line number Diff line number Diff line
@@ -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

  -------------------

sound/isa/sb/jazz16.c

+20 −1
Original line number Diff line number Diff line
@@ -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;

sound/isa/sb/sb8_main.c

+2 −1
Original line number Diff line number Diff line
@@ -510,6 +510,7 @@ static int snd_sb8_open(struct snd_pcm_substream *substream) 
	}

	switch (chip->hardware) {

	case SB_HW_JAZZ16:

		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;