static __inline__ void set_dma_page()

in include/asm/dma.h [267:299]

• 33 lines of code
• 8 McCabe index (conditional complexity)

static __inline__ void set_dma_page(unsigned int dmanr, unsigned int pagenr)
{
	switch(dmanr) {
		case 0:
			dma_outb(pagenr, DMA_PAGE_0);
			dma_outb((pagenr >> 8), DMA_HIPAGE_0);
			break;
		case 1:
			dma_outb(pagenr, DMA_PAGE_1);
			dma_outb((pagenr >> 8), DMA_HIPAGE_1);
			break;
		case 2:
			dma_outb(pagenr, DMA_PAGE_2);
			dma_outb((pagenr >> 8), DMA_HIPAGE_2);
			break;
		case 3:
			dma_outb(pagenr, DMA_PAGE_3);
			dma_outb((pagenr >> 8), DMA_HIPAGE_3);
			break;
		case 5:
			dma_outb(pagenr & 0xfe, DMA_PAGE_5);
			dma_outb((pagenr >> 8), DMA_HIPAGE_5);
			break;
		case 6:
			dma_outb(pagenr & 0xfe, DMA_PAGE_6);
			dma_outb((pagenr >> 8), DMA_HIPAGE_6);
			break;
		case 7:
			dma_outb(pagenr & 0xfe, DMA_PAGE_7);
			dma_outb((pagenr >> 8), DMA_HIPAGE_7);
			break;
	}
}