#include <linux/init.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/dmaengine.h>
#include <linux/delay.h>
if (cookie < 0)
cookie = 1;
- desc->async_tx.cookie = cookie;
+ child->async_tx.cookie = cookie;
}
chan->common.cookie = cookie;
return NULL;
}
-static void fsl_dma_device_terminate_all(struct dma_chan *dchan)
+static int fsl_dma_device_control(struct dma_chan *dchan,
+ enum dma_ctrl_cmd cmd, unsigned long arg)
{
struct fsldma_chan *chan;
unsigned long flags;
+ /* Only supports DMA_TERMINATE_ALL */
+ if (cmd != DMA_TERMINATE_ALL)
+ return -ENXIO;
+
if (!dchan)
- return;
+ return -EINVAL;
chan = to_fsl_chan(dchan);
fsldma_free_desc_list(chan, &chan->ld_running);
spin_unlock_irqrestore(&chan->desc_lock, flags);
+
+ return 0;
}
/**
desc = to_fsl_desc(chan->ld_running.prev);
if (dma_is_idle(chan))
cookie = desc->async_tx.cookie;
- else
+ else {
cookie = desc->async_tx.cookie - 1;
+ if (unlikely(cookie < DMA_MIN_COOKIE))
+ cookie = DMA_MAX_COOKIE;
+ }
chan->completed_cookie = cookie;
}
/**
- * fsl_dma_is_complete - Determine the DMA status
+ * fsl_tx_status - Determine the DMA status
* @chan : Freescale DMA channel
*/
-static enum dma_status fsl_dma_is_complete(struct dma_chan *dchan,
+static enum dma_status fsl_tx_status(struct dma_chan *dchan,
dma_cookie_t cookie,
- dma_cookie_t *done,
- dma_cookie_t *used)
+ struct dma_tx_state *txstate)
{
struct fsldma_chan *chan = to_fsl_chan(dchan);
dma_cookie_t last_used;
last_used = dchan->cookie;
last_complete = chan->completed_cookie;
- if (done)
- *done = last_complete;
-
- if (used)
- *used = last_used;
+ dma_set_tx_state(txstate, last_complete, last_used, 0);
return dma_async_is_complete(cookie, last_complete, last_used);
}
fdev->common.device_free_chan_resources = fsl_dma_free_chan_resources;
fdev->common.device_prep_dma_interrupt = fsl_dma_prep_interrupt;
fdev->common.device_prep_dma_memcpy = fsl_dma_prep_memcpy;
- fdev->common.device_is_tx_complete = fsl_dma_is_complete;
+ fdev->common.device_tx_status = fsl_tx_status;
fdev->common.device_issue_pending = fsl_dma_memcpy_issue_pending;
fdev->common.device_prep_slave_sg = fsl_dma_prep_slave_sg;
- fdev->common.device_terminate_all = fsl_dma_device_terminate_all;
+ fdev->common.device_control = fsl_dma_device_control;
fdev->common.dev = &op->dev;
dev_set_drvdata(&op->dev, fdev);
return 0;
}
-static struct of_device_id fsldma_of_ids[] = {
+static const struct of_device_id fsldma_of_ids[] = {
{ .compatible = "fsl,eloplus-dma", },
{ .compatible = "fsl,elo-dma", },
{}