diff options
Diffstat (limited to 'sound/sparc/cs4231.c')
| -rw-r--r-- | sound/sparc/cs4231.c | 42 |
1 files changed, 5 insertions, 37 deletions
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c index dca0344cc1bc..f2950cab74a6 100644 --- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -74,7 +74,6 @@ struct cs4231_dma_control { void (*enable)(struct cs4231_dma_control *dma_cont, int on); int (*request)(struct cs4231_dma_control *dma_cont, dma_addr_t bus_addr, size_t len); unsigned int (*address)(struct cs4231_dma_control *dma_cont); - void (*reset)(struct snd_cs4231 *chip); void (*preallocate)(struct snd_cs4231 *chip, struct snd_pcm *pcm); #ifdef EBUS_SUPPORT struct ebus_dma_info ebus_info; @@ -1214,10 +1213,6 @@ static int __init snd_cs4231_probe(struct snd_cs4231 *chip) spin_lock_irqsave(&chip->lock, flags); - - /* Reset DMA engine (sbus only). */ - chip->p_dma.reset(chip); - __cs4231_readb(chip, CS4231P(chip, STATUS)); /* clear any pendings IRQ */ __cs4231_writeb(chip, 0, CS4231P(chip, STATUS)); mb(); @@ -1861,14 +1856,13 @@ static void sbus_dma_enable(struct cs4231_dma_control *dma_cont, int on) if (!on) { sbus_writel(0, base->regs + base->dir + APCNC); sbus_writel(0, base->regs + base->dir + APCNVA); - sbus_writel(0, base->regs + base->dir + APCC); - sbus_writel(0, base->regs + base->dir + APCVA); + if ( base->dir == APC_PLAY ) { + sbus_writel(0, base->regs + base->dir + APCC); + sbus_writel(0, base->regs + base->dir + APCVA); + } - /* ACK any APC interrupts. */ - csr = sbus_readl(base->regs + APCCSR); - sbus_writel(csr, base->regs + APCCSR); + udelay(1200); } - udelay(1000); csr = sbus_readl(base->regs + APCCSR); shift = 0; if ( base->dir == APC_PLAY ) @@ -1894,23 +1888,6 @@ static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont) return sbus_readl(base->regs + base->dir + APCVA); } -static void sbus_dma_reset(struct snd_cs4231 *chip) -{ - sbus_writel(APC_CHIP_RESET, chip->port + APCCSR); - sbus_writel(0x00, chip->port + APCCSR); - sbus_writel(sbus_readl(chip->port + APCCSR) | APC_CDC_RESET, - chip->port + APCCSR); - - udelay(20); - - sbus_writel(sbus_readl(chip->port + APCCSR) & ~APC_CDC_RESET, - chip->port + APCCSR); - sbus_writel(sbus_readl(chip->port + APCCSR) | (APC_XINT_ENA | - APC_XINT_PENA | - APC_XINT_CENA), - chip->port + APCCSR); -} - static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm) { snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS, @@ -1986,14 +1963,12 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card, chip->p_dma.enable = sbus_dma_enable; chip->p_dma.request = sbus_dma_request; chip->p_dma.address = sbus_dma_addr; - chip->p_dma.reset = sbus_dma_reset; chip->p_dma.preallocate = sbus_dma_preallocate; chip->c_dma.prepare = sbus_dma_prepare; chip->c_dma.enable = sbus_dma_enable; chip->c_dma.request = sbus_dma_request; chip->c_dma.address = sbus_dma_addr; - chip->c_dma.reset = sbus_dma_reset; chip->c_dma.preallocate = sbus_dma_preallocate; if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt, @@ -2087,11 +2062,6 @@ static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont) return ebus_dma_addr(&dma_cont->ebus_info); } -static void _ebus_dma_reset(struct snd_cs4231 *chip) -{ - return; -} - static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm) { snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, @@ -2171,14 +2141,12 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card, chip->p_dma.enable = _ebus_dma_enable; chip->p_dma.request = _ebus_dma_request; chip->p_dma.address = _ebus_dma_addr; - chip->p_dma.reset = _ebus_dma_reset; chip->p_dma.preallocate = _ebus_dma_preallocate; chip->c_dma.prepare = _ebus_dma_prepare; chip->c_dma.enable = _ebus_dma_enable; chip->c_dma.request = _ebus_dma_request; chip->c_dma.address = _ebus_dma_addr; - chip->c_dma.reset = _ebus_dma_reset; chip->c_dma.preallocate = _ebus_dma_preallocate; chip->port = ioremap(edev->resource[0].start, 0x10); |