C++ (Cpp) dma_set_tx_state Examples

Example #1

File: mmp_tdma.c Project: mikuhatsune001/linux2.6.32

static enum dma_status mmp_tdma_tx_status(struct dma_chan *chan,
			dma_cookie_t cookie, struct dma_tx_state *txstate)
{
	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);

	dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie,
			 tdmac->buf_len - tdmac->pos);

	return tdmac->status;
}

Example #2

File: imx-sdma.c Project: silentsight/linux-shortbus

static enum dma_status sdma_tx_status(struct dma_chan *chan,
					    dma_cookie_t cookie,
					    struct dma_tx_state *txstate)
{
	struct sdma_channel *sdmac = to_sdma_chan(chan);
	dma_cookie_t last_used;

	last_used = chan->cookie;

	dma_set_tx_state(txstate, sdmac->last_completed, last_used, 0);

	return sdmac->status;
}