void dac0800_startdma(unsigned char *buf, unsigned int size)
{
/* Clear DMA interrupt */
disable_dma(DAC0800_DMA_CHAN);
/* Do DMA write to i/o operation */
set_dma_mode(DAC0800_DMA_CHAN, DMA_MODE_WRITE);
set_dma_device_addr(DAC0800_DMA_CHAN, DAC0800_DMA_DESTADDR);
set_dma_addr(DAC0800_DMA_CHAN, (unsigned int) buf);
set_dma_count(DAC0800_DMA_CHAN, size);
/* Fire it off! */
enable_dma(DAC0800_DMA_CHAN);
}
/*
* Configure and start DMA engine.
*/
void __inline__ m5249audio_dmarun(void)
{
#if DEBUG
printk("m5249audio_dmarun(): dma=%x count=%d\n",
m5249audio_dmastart, m5249audio_dmacount);
#endif
set_dma_mode(M5249AUDIO_DMA, DMA_MODE_WRITE|DMA_MODE_LONG_BIT);
set_dma_device_addr(M5249AUDIO_DMA, (MCF_MBAR2+MCFA_PDOR3));
set_dma_addr(M5249AUDIO_DMA, (int)&m5249audio_buf[m5249audio_dmastart]);
set_dma_count(M5249AUDIO_DMA, m5249audio_dmacount);
m5249audio_dmaing = 1;
m5249audio_txbusy = 1;
enable_dma(M5249AUDIO_DMA);
}
