Function SetDmaAddr

bsp/x86/drivers/dma.h:149–159

* 设定DMA 传输高速缓冲区地址 */

 * 设定DMA 传输高速缓冲区地址
 */
static __inline__ void SetDmaAddr(unsigned int dmanr, unsigned int a)
{
    SetDmaPage(dmanr, a>>16);
    if (dmanr <= 3)  {
        OUTB( a & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
            OUTB( (a>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
    }  else  {
        OUTB( (a>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
        OUTB( (a>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
    }
}


/*