C++ (Cpp) bfin_write_DMAC_TC_PER示例

示例#1

文件： bfin_dma.c 项目： Blackburn29/PsycoKernel

static int __init blackfin_dma_init(void)
{
	int i;

	printk(KERN_INFO "Blackfin DMA Controller\n");


#if ANOMALY_05000480
	bfin_write_DMAC_TC_PER(0x0111);
#endif

	for (i = 0; i < MAX_DMA_CHANNELS; i++) {
		atomic_set(&dma_ch[i].chan_status, 0);
		dma_ch[i].regs = dma_io_base_addr[i];
	}
	
	request_dma(CH_MEM_STREAM0_DEST, "Blackfin dma_memcpy");
	request_dma(CH_MEM_STREAM0_SRC, "Blackfin dma_memcpy");

#if defined(CONFIG_DEB_DMA_URGENT)
	bfin_write_EBIU_DDRQUE(bfin_read_EBIU_DDRQUE()
			 | DEB1_URGENT | DEB2_URGENT | DEB3_URGENT);
#endif

	return 0;
}

示例#2

文件： bfin_dma.c 项目： cake654326/xpenology

void blackfin_dma_resume(void)
{
	int i;

	for (i = 0; i < MAX_DMA_CHANNELS; ++i) {
		dma_ch[i].regs->cfg = 0;
		if (i < MAX_DMA_SUSPEND_CHANNELS)
			dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map;
	}
#if ANOMALY_05000480
	bfin_write_DMAC_TC_PER(0x0111);
#endif
}

示例#3

文件： bfin_dma.c 项目： cake654326/xpenology

int blackfin_dma_suspend(void)
{
	int i;

	for (i = 0; i < MAX_DMA_CHANNELS; ++i) {
		if (dma_ch[i].regs->cfg & DMAEN) {
			printk(KERN_ERR "DMA Channel %d failed to suspend\n", i);
			return -EBUSY;
		}
		if (i < MAX_DMA_SUSPEND_CHANNELS)
			dma_ch[i].saved_peripheral_map = dma_ch[i].regs->peripheral_map;
	}

#if ANOMALY_05000480
	bfin_write_DMAC_TC_PER(0x0);
#endif
	return 0;
}