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authorPaul Mundt <lethal@linux-sh.org>2008-07-29 08:09:44 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-29 08:09:44 +0900
commitf15cbe6f1a4b4d9df59142fc8e4abb973302cf44 (patch)
tree774d7b11abaaf33561ab8268bf51ddd9ceb79025 /include/asm-sh/dma.h
parent25326277d8d1393d1c66240e6255aca780f9e3eb (diff)
sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/dma.h')
-rw-r--r--include/asm-sh/dma.h166
1 files changed, 0 insertions, 166 deletions
diff --git a/include/asm-sh/dma.h b/include/asm-sh/dma.h
deleted file mode 100644
index a65b02fd186..00000000000
--- a/include/asm-sh/dma.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * include/asm-sh/dma.h
- *
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#ifndef __ASM_SH_DMA_H
-#define __ASM_SH_DMA_H
-#ifdef __KERNEL__
-
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
-#include <linux/sysdev.h>
-#include <asm/cpu/dma.h>
-
-/* The maximum address that we can perform a DMA transfer to on this platform */
-/* Don't define MAX_DMA_ADDRESS; it's useless on the SuperH and any
- occurrence should be flagged as an error. */
-/* But... */
-/* XXX: This is not applicable to SuperH, just needed for alloc_bootmem */
-#define MAX_DMA_ADDRESS (PAGE_OFFSET+0x10000000)
-
-#ifdef CONFIG_NR_DMA_CHANNELS
-# define MAX_DMA_CHANNELS (CONFIG_NR_DMA_CHANNELS)
-#else
-# define MAX_DMA_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS)
-#endif
-
-/*
- * Read and write modes can mean drastically different things depending on the
- * channel configuration. Consult your DMAC documentation and module
- * implementation for further clues.
- */
-#define DMA_MODE_READ 0x00
-#define DMA_MODE_WRITE 0x01
-#define DMA_MODE_MASK 0x01
-
-#define DMA_AUTOINIT 0x10
-
-/*
- * DMAC (dma_info) flags
- */
-enum {
- DMAC_CHANNELS_CONFIGURED = 0x01,
- DMAC_CHANNELS_TEI_CAPABLE = 0x02, /* Transfer end interrupt */
-};
-
-/*
- * DMA channel capabilities / flags
- */
-enum {
- DMA_CONFIGURED = 0x01,
-
- /*
- * Transfer end interrupt, inherited from DMAC.
- * wait_queue used in dma_wait_for_completion.
- */
- DMA_TEI_CAPABLE = 0x02,
-};
-
-extern spinlock_t dma_spin_lock;
-
-struct dma_channel;
-
-struct dma_ops {
- int (*request)(struct dma_channel *chan);
- void (*free)(struct dma_channel *chan);
-
- int (*get_residue)(struct dma_channel *chan);
- int (*xfer)(struct dma_channel *chan);
- int (*configure)(struct dma_channel *chan, unsigned long flags);
- int (*extend)(struct dma_channel *chan, unsigned long op, void *param);
-};
-
-struct dma_channel {
- char dev_id[16]; /* unique name per DMAC of channel */
-
- unsigned int chan; /* DMAC channel number */
- unsigned int vchan; /* Virtual channel number */
-
- unsigned int mode;
- unsigned int count;
-
- unsigned long sar;
- unsigned long dar;
-
- const char **caps;
-
- unsigned long flags;
- atomic_t busy;
-
- wait_queue_head_t wait_queue;
-
- struct sys_device dev;
- void *priv_data;
-};
-
-struct dma_info {
- struct platform_device *pdev;
-
- const char *name;
- unsigned int nr_channels;
- unsigned long flags;
-
- struct dma_ops *ops;
- struct dma_channel *channels;
-
- struct list_head list;
- int first_channel_nr;
- int first_vchannel_nr;
-};
-
-struct dma_chan_caps {
- int ch_num;
- const char **caplist;
-};
-
-#define to_dma_channel(channel) container_of(channel, struct dma_channel, dev)
-
-/* arch/sh/drivers/dma/dma-api.c */
-extern int dma_xfer(unsigned int chan, unsigned long from,
- unsigned long to, size_t size, unsigned int mode);
-
-#define dma_write(chan, from, to, size) \
- dma_xfer(chan, from, to, size, DMA_MODE_WRITE)
-#define dma_write_page(chan, from, to) \
- dma_write(chan, from, to, PAGE_SIZE)
-
-#define dma_read(chan, from, to, size) \
- dma_xfer(chan, from, to, size, DMA_MODE_READ)
-#define dma_read_page(chan, from, to) \
- dma_read(chan, from, to, PAGE_SIZE)
-
-extern int request_dma_bycap(const char **dmac, const char **caps,
- const char *dev_id);
-extern int request_dma(unsigned int chan, const char *dev_id);
-extern void free_dma(unsigned int chan);
-extern int get_dma_residue(unsigned int chan);
-extern struct dma_info *get_dma_info(unsigned int chan);
-extern struct dma_channel *get_dma_channel(unsigned int chan);
-extern void dma_wait_for_completion(unsigned int chan);
-extern void dma_configure_channel(unsigned int chan, unsigned long flags);
-
-extern int register_dmac(struct dma_info *info);
-extern void unregister_dmac(struct dma_info *info);
-extern struct dma_info *get_dma_info_by_name(const char *dmac_name);
-
-extern int dma_extend(unsigned int chan, unsigned long op, void *param);
-extern int register_chan_caps(const char *dmac, struct dma_chan_caps *capslist);
-
-/* arch/sh/drivers/dma/dma-sysfs.c */
-extern int dma_create_sysfs_files(struct dma_channel *, struct dma_info *);
-extern void dma_remove_sysfs_files(struct dma_channel *, struct dma_info *);
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy (0)
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH_DMA_H */