ALSA: jazz16: refine dma and irq selection (44eba3e8) · Commits · 戴 / test

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

+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;

+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;