#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
-
+#include <linux/fsldma.h>
#include "dmaengine.h"
#include "fsldma.h"
chan->feature &= ~FSL_DMA_CHAN_START_EXT;
}
+int fsl_dma_external_start(struct dma_chan *dchan, int enable)
+{
+ struct fsldma_chan *chan;
+
+ if (!dchan)
+ return -EINVAL;
+
+ chan = to_fsl_chan(dchan);
+
+ fsl_chan_toggle_ext_start(chan, enable);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(fsl_dma_external_start);
+
static void append_ld_queue(struct fsldma_chan *chan, struct fsl_desc_sw *desc)
{
struct fsl_desc_sw *tail = to_fsl_desc(chan->ld_pending.prev);
chan->set_request_count(chan, size);
return 0;
- case FSLDMA_EXTERNAL_START:
-
- /* make sure the channel supports external start */
- if (!chan->toggle_ext_start)
- return -ENXIO;
-
- chan->toggle_ext_start(chan, arg);
- return 0;
-
default:
return -ENXIO;
}
#include <linux/completion.h>
#include <linux/miscdevice.h>
#include <linux/dmaengine.h>
+#include <linux/fsldma.h>
#include <linux/interrupt.h>
#include <linux/highmem.h>
#include <linux/kernel.h>
config.direction = DMA_MEM_TO_DEV;
config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
config.dst_maxburst = fpga_fifo_size(priv->regs) / 2 / 4;
- ret = chan->device->device_control(chan, DMA_SLAVE_CONFIG,
- (unsigned long)&config);
+ ret = dmaengine_slave_config(chan, &config);
if (ret) {
dev_err(priv->dev, "DMA slave configuration failed\n");
goto out_dma_unmap;
}
- ret = chan->device->device_control(chan, FSLDMA_EXTERNAL_START, 1);
+ ret = fsl_dma_external_start(chan, 1)
if (ret) {
dev_err(priv->dev, "DMA external control setup failed\n");
goto out_dma_unmap;
}
/* setup and submit the DMA transaction */
- tx = chan->device->device_prep_dma_sg(chan,
- table.sgl, num_pages,
- vb->sglist, vb->sglen, 0);
+
+ tx = dmaengine_prep_dma_sg(chan, table.sgl, num_pages,
+ vb->sglist, vb->sglen, 0);
if (!tx) {
dev_err(priv->dev, "Unable to prep DMA transaction\n");
ret = -ENOMEM;
* configuration data in statically from the platform). An additional
* argument of struct dma_slave_config must be passed in with this
* command.
- * @FSLDMA_EXTERNAL_START: this command will put the Freescale DMA controller
- * into external start mode.
*/
enum dma_ctrl_cmd {
DMA_TERMINATE_ALL,
DMA_PAUSE,
DMA_RESUME,
DMA_SLAVE_CONFIG,
- FSLDMA_EXTERNAL_START,
};
/**
return chan->device->device_prep_interleaved_dma(chan, xt, flags);
}
+static inline struct dma_async_tx_descriptor *dmaengine_prep_dma_sg(
+ struct dma_chan *chan,
+ struct scatterlist *dst_sg, unsigned int dst_nents,
+ struct scatterlist *src_sg, unsigned int src_nents,
+ unsigned long flags)
+{
+ return chan->device->device_prep_dma_sg(chan, dst_sg, dst_nents,
+ src_sg, src_nents, flags);
+}
+
static inline int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
{
if (!chan || !caps)
--- /dev/null
+/*
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef FSL_DMA_H
+#define FSL_DMA_H
+/* fsl dma API for enxternal start */
+int fsl_dma_external_start(struct dma_chan *dchan, int enable);
+
+#endif