Exemplos de mmp_tdma_config_chan em C++ (Cpp)

Exemplo n.º 1

Arquivo: mmp_tdma.c Projeto: AdrianHuang/linux-3.8.13

static int mmp_tdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
		unsigned long arg)
{
	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);
	struct dma_slave_config *dmaengine_cfg = (void *)arg;
	int ret = 0;

	switch (cmd) {
	case DMA_TERMINATE_ALL:
		mmp_tdma_disable_chan(tdmac);
		break;
	case DMA_PAUSE:
		mmp_tdma_pause_chan(tdmac);
		break;
	case DMA_RESUME:
		mmp_tdma_resume_chan(tdmac);
		break;
	case DMA_SLAVE_CONFIG:
		if (dmaengine_cfg->direction == DMA_DEV_TO_MEM) {
			tdmac->dev_addr = dmaengine_cfg->src_addr;
			tdmac->burst_sz = dmaengine_cfg->src_maxburst;
			tdmac->buswidth = dmaengine_cfg->src_addr_width;
		} else {
			tdmac->dev_addr = dmaengine_cfg->dst_addr;
			tdmac->burst_sz = dmaengine_cfg->dst_maxburst;
			tdmac->buswidth = dmaengine_cfg->dst_addr_width;
		}
		tdmac->dir = dmaengine_cfg->direction;
		return mmp_tdma_config_chan(tdmac);
	default:
		ret = -ENOSYS;
	}

	return ret;
}

Exemplo n.º 2

Arquivo: mmp_tdma.c Projeto: AK101111/linux

static int mmp_tdma_config(struct dma_chan *chan,
			   struct dma_slave_config *dmaengine_cfg)
{
	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);

	if (dmaengine_cfg->direction == DMA_DEV_TO_MEM) {
		tdmac->dev_addr = dmaengine_cfg->src_addr;
		tdmac->burst_sz = dmaengine_cfg->src_maxburst;
		tdmac->buswidth = dmaengine_cfg->src_addr_width;
	} else {
		tdmac->dev_addr = dmaengine_cfg->dst_addr;
		tdmac->burst_sz = dmaengine_cfg->dst_maxburst;
		tdmac->buswidth = dmaengine_cfg->dst_addr_width;
	}
	tdmac->dir = dmaengine_cfg->direction;

	return mmp_tdma_config_chan(chan);
}