desc = ep93xx_dma_get_active(edmac);
if (desc) {
if (desc->complete) {
- edmac->chan.completed_cookie = desc->txd.cookie;
+ dma_cookie_complete(&desc->txd);
list_splice_init(&edmac->active, &list);
}
callback = desc->txd.callback;
unsigned long flags;
spin_lock_irqsave(&edmac->lock, flags);
-
- cookie = edmac->chan.cookie;
-
- if (++cookie < 0)
- cookie = 1;
+ cookie = dma_cookie_assign(tx);
desc = container_of(tx, struct ep93xx_dma_desc, txd);
- edmac->chan.cookie = cookie;
- desc->txd.cookie = cookie;
-
/*
* If nothing is currently prosessed, we push this descriptor
* directly to the hardware. Otherwise we put the descriptor
goto fail_clk_disable;
spin_lock_irq(&edmac->lock);
- edmac->chan.completed_cookie = 1;
- edmac->chan.cookie = 1;
+ dma_cookie_init(&edmac->chan);
ret = edmac->edma->hw_setup(edmac);
spin_unlock_irq(&edmac->lock);
* @sg_len: number of entries in @sgl
* @dir: direction of tha DMA transfer
* @flags: flags for the descriptor
+ * @context: operation context (ignored)
*
* Returns a valid DMA descriptor or %NULL in case of failure.
*/
static struct dma_async_tx_descriptor *
ep93xx_dma_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
unsigned int sg_len, enum dma_transfer_direction dir,
- unsigned long flags)
+ unsigned long flags, void *context)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
struct ep93xx_dma_desc *desc, *first;
* @buf_len: length of the buffer (in bytes)
* @period_len: lenght of a single period
* @dir: direction of the operation
+ * @context: operation context (ignored)
*
* Prepares a descriptor for cyclic DMA operation. This means that once the
* descriptor is submitted, we will be submitting in a @period_len sized
static struct dma_async_tx_descriptor *
ep93xx_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,
size_t buf_len, size_t period_len,
- enum dma_transfer_direction dir)
+ enum dma_transfer_direction dir, void *context)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
struct ep93xx_dma_desc *desc, *first;
struct dma_tx_state *state)
{
struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
- dma_cookie_t last_used, last_completed;
enum dma_status ret;
unsigned long flags;
spin_lock_irqsave(&edmac->lock, flags);
- last_used = chan->cookie;
- last_completed = chan->completed_cookie;
+ ret = dma_cookie_status(chan, cookie, state);
spin_unlock_irqrestore(&edmac->lock, flags);
- ret = dma_async_is_complete(cookie, last_completed, last_used);
- dma_set_tx_state(state, last_completed, last_used, 0);
-
return ret;
}