1 files changed, 0 insertions, 114 deletions
diff --git a/drivers/comedi/drivers/comedi_isadma.h b/drivers/comedi/drivers/comedi_isadma.h
deleted file mode 100644
index 9d2b12db7e6e..000000000000
--- a/drivers/comedi/drivers/comedi_isadma.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * COMEDI ISA DMA support functions
- * Copyright (c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com>
- */
-
-#ifndef _COMEDI_ISADMA_H
-#define _COMEDI_ISADMA_H
-
-#include <linux/types.h>
-
-struct comedi_device;
-struct device;
-
-/*
- * These are used to avoid issues when <asm/dma.h> and the DMA_MODE_
- * defines are not available.
- */
-#define COMEDI_ISADMA_READ	0
-#define COMEDI_ISADMA_WRITE	1
-
-/**
- * struct comedi_isadma_desc - cookie for ISA DMA
- * @virt_addr:	virtual address of buffer
- * @hw_addr:	hardware (bus) address of buffer
- * @chan:	DMA channel
- * @maxsize:	allocated size of buffer (in bytes)
- * @size:	transfer size (in bytes)
- * @mode:	DMA_MODE_READ or DMA_MODE_WRITE
- */
-struct comedi_isadma_desc {
-	void *virt_addr;
-	dma_addr_t hw_addr;
-	unsigned int chan;
-	unsigned int maxsize;
-	unsigned int size;
-	char mode;
-};
-
-/**
- * struct comedi_isadma - ISA DMA data
- * @dev:	device to allocate non-coherent memory for
- * @desc:	cookie for each DMA buffer
- * @n_desc:	the number of cookies
- * @cur_dma:	the current cookie in use
- * @chan:	the first DMA channel requested
- * @chan2:	the second DMA channel requested
- */
-struct comedi_isadma {
-	struct device *dev;
-	struct comedi_isadma_desc *desc;
-	int n_desc;
-	int cur_dma;
-	unsigned int chan;
-	unsigned int chan2;
-};
-
-#if IS_ENABLED(CONFIG_ISA_DMA_API)
-
-void comedi_isadma_program(struct comedi_isadma_desc *desc);
-unsigned int comedi_isadma_disable(unsigned int dma_chan);
-unsigned int comedi_isadma_disable_on_sample(unsigned int dma_chan,
-					     unsigned int size);
-unsigned int comedi_isadma_poll(struct comedi_isadma *dma);
-void comedi_isadma_set_mode(struct comedi_isadma_desc *desc, char dma_dir);
-
-struct comedi_isadma *comedi_isadma_alloc(struct comedi_device *dev,
-					  int n_desc, unsigned int dma_chan1,
-					  unsigned int dma_chan2,
-					  unsigned int maxsize, char dma_dir);
-void comedi_isadma_free(struct comedi_isadma *dma);
-
-#else	/* !IS_ENABLED(CONFIG_ISA_DMA_API) */
-
-static inline void comedi_isadma_program(struct comedi_isadma_desc *desc)
-{
-}
-
-static inline unsigned int comedi_isadma_disable(unsigned int dma_chan)
-{
-	return 0;
-}
-
-static inline unsigned int
-comedi_isadma_disable_on_sample(unsigned int dma_chan, unsigned int size)
-{
-	return 0;
-}
-
-static inline unsigned int comedi_isadma_poll(struct comedi_isadma *dma)
-{
-	return 0;
-}
-
-static inline void comedi_isadma_set_mode(struct comedi_isadma_desc *desc,
-					  char dma_dir)
-{
-}
-
-static inline struct comedi_isadma *
-comedi_isadma_alloc(struct comedi_device *dev, int n_desc,
-		    unsigned int dma_chan1, unsigned int dma_chan2,
-		    unsigned int maxsize, char dma_dir)
-{
-	return NULL;
-}
-
-static inline void comedi_isadma_free(struct comedi_isadma *dma)
-{
-}
-
-#endif	/* !IS_ENABLED(CONFIG_ISA_DMA_API) */
-
-#endif	/* #ifndef _COMEDI_ISADMA_H */