*/
int (*request)(struct dma *dma);
/**
- * free - Free a previously requested dma.
+ * rfree - Free a previously requested dma.
*
* This is the implementation of the client dma_free() API.
*
* @dma: The DMA to free.
* @return 0 if OK, or a negative error code.
*/
- int (*free)(struct dma *dma);
+ int (*rfree)(struct dma *dma);
/**
* enable() - Enable a DMA Channel.
*
* @return zero on success, or -ve error code.
*/
int (*send)(struct dma *dma, void *src, size_t len, void *metadata);
+ /**
+ * get_cfg() - Get DMA channel configuration for client's use
+ *
+ * @dma: The DMA Channel to manipulate
+ * @cfg_id: DMA provider specific ID to identify what
+ * configuration data client needs
+ * @data: Pointer to store pointer to DMA driver specific
+ * configuration data for the given cfg_id (output param)
+ * @return zero on success, or -ve error code.
+ */
+ int (*get_cfg)(struct dma *dma, u32 cfg_id, void **data);
#endif /* CONFIG_DMA_CHANNELS */
/**
* transfer() - Issue a DMA transfer. The implementation must
* @len: Length of the data to be copied (number of bytes).
* @return zero on success, or -ve error code.
*/
- int (*transfer)(struct udevice *dev, int direction, void *dst,
- void *src, size_t len);
+ int (*transfer)(struct udevice *dev, int direction, dma_addr_t dst,
+ dma_addr_t src, size_t len);
};
#endif /* _DMA_UCLASS_H */