141 static void pasemi_free_tx_chan(int chan)  in pasemi_free_tx_chan()  argument
143 	BUG_ON(test_bit(chan, txch_free));  in pasemi_free_tx_chan()
144 	set_bit(chan, txch_free);  in pasemi_free_tx_chan()
160 static void pasemi_free_rx_chan(int chan)  in pasemi_free_rx_chan()  argument
162 	BUG_ON(test_bit(chan, rxch_free));  in pasemi_free_rx_chan()
163 	set_bit(chan, rxch_free);  in pasemi_free_rx_chan()
185 	struct pasemi_dmachan *chan;  in pasemi_dma_alloc_chan()  local
194 	chan = buf + offset;  in pasemi_dma_alloc_chan()
196 	chan->priv = buf;  in pasemi_dma_alloc_chan()
201 		chan->chno = chno;  in pasemi_dma_alloc_chan()
202 		chan->irq = irq_create_mapping(NULL,  in pasemi_dma_alloc_chan()
204 		chan->status = &dma_status->rx_sta[chno];  in pasemi_dma_alloc_chan()
208 		chan->chno = chno;  in pasemi_dma_alloc_chan()
209 		chan->irq = irq_create_mapping(NULL, base_hw_irq + chno);  in pasemi_dma_alloc_chan()
210 		chan->status = &dma_status->tx_sta[chno];  in pasemi_dma_alloc_chan()
214 	chan->chan_type = type;  in pasemi_dma_alloc_chan()
216 	return chan;  in pasemi_dma_alloc_chan()
226 void pasemi_dma_free_chan(struct pasemi_dmachan *chan)  in pasemi_dma_free_chan()  argument
228 	if (chan->ring_virt)  in pasemi_dma_free_chan()
229 		pasemi_dma_free_ring(chan);  in pasemi_dma_free_chan()
231 	switch (chan->chan_type & (RXCHAN|TXCHAN)) {  in pasemi_dma_free_chan()
233 		pasemi_free_rx_chan(chan->chno);  in pasemi_dma_free_chan()
236 		pasemi_free_tx_chan(chan->chno);  in pasemi_dma_free_chan()
240 	kfree(chan->priv);  in pasemi_dma_free_chan()
252 int pasemi_dma_alloc_ring(struct pasemi_dmachan *chan, int ring_size)  in pasemi_dma_alloc_ring()  argument
254 	BUG_ON(chan->ring_virt);  in pasemi_dma_alloc_ring()
256 	chan->ring_size = ring_size;  in pasemi_dma_alloc_ring()
258 	chan->ring_virt = dma_alloc_coherent(&dma_pdev->dev,  in pasemi_dma_alloc_ring()
260 					     &chan->ring_dma, GFP_KERNEL);  in pasemi_dma_alloc_ring()
262 	if (!chan->ring_virt)  in pasemi_dma_alloc_ring()
265 	memset(chan->ring_virt, 0, ring_size * sizeof(u64));  in pasemi_dma_alloc_ring()
276 void pasemi_dma_free_ring(struct pasemi_dmachan *chan)  in pasemi_dma_free_ring()  argument
278 	BUG_ON(!chan->ring_virt);  in pasemi_dma_free_ring()
280 	dma_free_coherent(&dma_pdev->dev, chan->ring_size * sizeof(u64),  in pasemi_dma_free_ring()
281 			  chan->ring_virt, chan->ring_dma);  in pasemi_dma_free_ring()
282 	chan->ring_virt = NULL;  in pasemi_dma_free_ring()
283 	chan->ring_size = 0;  in pasemi_dma_free_ring()
284 	chan->ring_dma = 0;  in pasemi_dma_free_ring()
294 void pasemi_dma_start_chan(const struct pasemi_dmachan *chan, const u32 cmdsta)  in pasemi_dma_start_chan()  argument
296 	if (chan->chan_type == RXCHAN)  in pasemi_dma_start_chan()
297 		pasemi_write_dma_reg(PAS_DMA_RXCHAN_CCMDSTA(chan->chno),  in pasemi_dma_start_chan()
300 		pasemi_write_dma_reg(PAS_DMA_TXCHAN_TCMDSTA(chan->chno),  in pasemi_dma_start_chan()
318 int pasemi_dma_stop_chan(const struct pasemi_dmachan *chan)  in pasemi_dma_stop_chan()  argument
323 	if (chan->chan_type == RXCHAN) {  in pasemi_dma_stop_chan()
324 		reg = PAS_DMA_RXCHAN_CCMDSTA(chan->chno);  in pasemi_dma_stop_chan()
335 		reg = PAS_DMA_TXCHAN_TCMDSTA(chan->chno);  in pasemi_dma_stop_chan()
361 void *pasemi_dma_alloc_buf(struct pasemi_dmachan *chan, int size,  in pasemi_dma_alloc_buf()  argument
375 void pasemi_dma_free_buf(struct pasemi_dmachan *chan, int size,  in pasemi_dma_free_buf()  argument