#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/scatterlist.h>
+
+#include "dmaengine.h"
#include "txx9dmac.h"
static struct txx9dmac_chan *to_txx9dmac_chan(struct dma_chan *chan)
}
}
-/* Called with dc->lock held and bh disabled */
-static dma_cookie_t
-txx9dmac_assign_cookie(struct txx9dmac_chan *dc, struct txx9dmac_desc *desc)
-{
- dma_cookie_t cookie = dc->chan.cookie;
-
- if (++cookie < 0)
- cookie = 1;
-
- dc->chan.cookie = cookie;
- desc->txd.cookie = cookie;
-
- return cookie;
-}
-
/*----------------------------------------------------------------------*/
static void txx9dmac_dump_regs(struct txx9dmac_chan *dc)
dev_vdbg(chan2dev(&dc->chan), "descriptor %u %p complete\n",
txd->cookie, desc);
- dc->completed = txd->cookie;
+ dma_cookie_complete(txd);
callback = txd->callback;
param = txd->callback_param;
dma_cookie_t cookie;
spin_lock_bh(&dc->lock);
- cookie = txx9dmac_assign_cookie(dc, desc);
+ cookie = dma_cookie_assign(tx);
dev_vdbg(chan2dev(tx->chan), "tx_submit: queued %u %p\n",
desc->txd.cookie, desc);
static struct dma_async_tx_descriptor *
txx9dmac_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
unsigned int sg_len, enum dma_transfer_direction direction,
- unsigned long flags)
+ unsigned long flags, void *context)
{
struct txx9dmac_chan *dc = to_txx9dmac_chan(chan);
struct txx9dmac_dev *ddev = dc->ddev;
struct dma_tx_state *txstate)
{
struct txx9dmac_chan *dc = to_txx9dmac_chan(chan);
- dma_cookie_t last_used;
- dma_cookie_t last_complete;
- int ret;
+ enum dma_status ret;
- last_complete = dc->completed;
- last_used = chan->cookie;
-
- ret = dma_async_is_complete(cookie, last_complete, last_used);
+ ret = dma_cookie_status(chan, cookie, txstate);
if (ret != DMA_SUCCESS) {
spin_lock_bh(&dc->lock);
txx9dmac_scan_descriptors(dc);
spin_unlock_bh(&dc->lock);
- last_complete = dc->completed;
- last_used = chan->cookie;
-
- ret = dma_async_is_complete(cookie, last_complete, last_used);
+ ret = dma_cookie_status(chan, cookie, txstate);
}
- dma_set_tx_state(txstate, last_complete, last_used, 0);
-
return ret;
}
return -EIO;
}
- dc->completed = chan->cookie = 1;
+ dma_cookie_init(chan);
dc->ccr = TXX9_DMA_CCR_IMMCHN | TXX9_DMA_CCR_INTENE | CCR_LE;
txx9dmac_chan_set_SMPCHN(dc);
dc->ddev->chan[ch] = dc;
dc->chan.device = &dc->dma;
list_add_tail(&dc->chan.device_node, &dc->chan.device->channels);
- dc->chan.cookie = dc->completed = 1;
+ dma_cookie_init(&dc->chan);
if (is_dmac64(dc))
dc->ch_regs = &__txx9dmac_regs(dc->ddev)->CHAN[ch];