drivers/dma/fsl-edma-common.h

1 /* SPDX-License-Identifier: GPL-2.0+ */
3  * Copyright 2013-2014 Freescale Semiconductor, Inc.
9 #include <linux/dma-direction.h>
11 #include "virt-dma.h"
227 	struct edma_regs	regs;  member
233 (sizeof(chan->tcd->__name) == sizeof(u32) ?			\
234 	edma_readl(chan->edma, &chan->tcd->__name) :		\
235 	edma_readw(chan->edma, &chan->tcd->__name))
238 (sizeof(chan->tcd->__name) == sizeof(u32) ?			\
239 	edma_writel(chan->edma, (u32 __force)val, &chan->tcd->__name) :	\
240 	edma_writew(chan->edma, (u16 __force)val, &chan->tcd->__name))
243 	edma_readl(chan->edma,					\
244 		   (void __iomem *)&(container_of(chan->tcd, struct fsl_edma3_ch_reg, tcd)->__name))
247 	edma_writel(chan->edma, val,				\
248 		   (void __iomem *)&(container_of(chan->tcd, struct fsl_edma3_ch_reg, tcd)->__name))
251  * R/W functions for big- or little-endian registers:
252  * The eDMA controller's endian is independent of the CPU core's endian.
253  * For the big-endian IP module, the offset for 8-bit or 16-bit registers
254  * should also be swapped opposite to that in little-endian IP.
258 	if (edma->big_endian)  in edma_readl()
266 	if (edma->big_endian)  in edma_readw()
275 	/* swap the reg offset for these in big-endian mode */  in edma_writeb()
276 	if (edma->big_endian)  in edma_writeb()
285 	/* swap the reg offset for these in big-endian mode */  in edma_writew()
286 	if (edma->big_endian)  in edma_writew()
295 	if (edma->big_endian)  in edma_writel()
308 	return fsl_chan->edma->drvdata->flags;  in fsl_edma_drvflags()
318 	fsl_chan->status = DMA_ERROR;  in fsl_edma_err_chan_handler()
319 	fsl_chan->idle = true;  in fsl_edma_err_chan_handler()