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-rw-r--r--include/asm-arm26/dma.h183
1 files changed, 0 insertions, 183 deletions
diff --git a/include/asm-arm26/dma.h b/include/asm-arm26/dma.h
deleted file mode 100644
index 4326ba8..0000000
--- a/include/asm-arm26/dma.h
+++ /dev/null
@@ -1,183 +0,0 @@
-#ifndef __ASM_ARM_DMA_H
-#define __ASM_ARM_DMA_H
-
-typedef unsigned int dmach_t;
-
-#include <linux/spinlock.h>
-#include <asm/system.h>
-#include <asm/memory.h>
-#include <asm/scatterlist.h>
-
-// FIXME - do we really need this? arm26 cant do 'proper' DMA
-
-typedef struct dma_struct dma_t;
-typedef unsigned int dmamode_t;
-
-struct dma_ops {
- int (*request)(dmach_t, dma_t *); /* optional */
- void (*free)(dmach_t, dma_t *); /* optional */
- void (*enable)(dmach_t, dma_t *); /* mandatory */
- void (*disable)(dmach_t, dma_t *); /* mandatory */
- int (*residue)(dmach_t, dma_t *); /* optional */
- int (*setspeed)(dmach_t, dma_t *, int); /* optional */
- char *type;
-};
-
-struct dma_struct {
- struct scatterlist buf; /* single DMA */
- int sgcount; /* number of DMA SG */
- struct scatterlist *sg; /* DMA Scatter-Gather List */
-
- unsigned int active:1; /* Transfer active */
- unsigned int invalid:1; /* Address/Count changed */
- unsigned int using_sg:1; /* using scatter list? */
- dmamode_t dma_mode; /* DMA mode */
- int speed; /* DMA speed */
-
- unsigned int lock; /* Device is allocated */
- const char *device_id; /* Device name */
-
- unsigned int dma_base; /* Controller base address */
- int dma_irq; /* Controller IRQ */
- int state; /* Controller state */
- struct scatterlist cur_sg; /* Current controller buffer */
-
- struct dma_ops *d_ops;
-};
-
-/* Prototype: void arch_dma_init(dma)
- * Purpose : Initialise architecture specific DMA
- * Params : dma - pointer to array of DMA structures
- */
-extern void arch_dma_init(dma_t *dma);
-
-extern void isa_init_dma(dma_t *dma);
-
-
-#define MAX_DMA_ADDRESS 0x03000000
-#define MAX_DMA_CHANNELS 3
-
-/* ARC */
-#define DMA_VIRTUAL_FLOPPY0 0
-#define DMA_VIRTUAL_FLOPPY1 1
-#define DMA_VIRTUAL_SOUND 2
-
-/* A5K */
-#define DMA_FLOPPY 0
-
-/*
- * DMA modes
- */
-#define DMA_MODE_MASK 3
-
-#define DMA_MODE_READ 0
-#define DMA_MODE_WRITE 1
-#define DMA_MODE_CASCADE 2
-#define DMA_AUTOINIT 4
-
-extern spinlock_t dma_spin_lock;
-
-static inline unsigned long claim_dma_lock(void)
-{
- unsigned long flags;
- spin_lock_irqsave(&dma_spin_lock, flags);
- return flags;
-}
-
-static inline void release_dma_lock(unsigned long flags)
-{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-/* Clear the 'DMA Pointer Flip Flop'.
- * Write 0 for LSB/MSB, 1 for MSB/LSB access.
- */
-#define clear_dma_ff(channel)
-
-/* Set only the page register bits of the transfer address.
- *
- * NOTE: This is an architecture specific function, and should
- * be hidden from the drivers
- */
-extern void set_dma_page(dmach_t channel, char pagenr);
-
-/* Request a DMA channel
- *
- * Some architectures may need to do allocate an interrupt
- */
-extern int request_dma(dmach_t channel, const char * device_id);
-
-/* Free a DMA channel
- *
- * Some architectures may need to do free an interrupt
- */
-extern void free_dma(dmach_t channel);
-
-/* Enable DMA for this channel
- *
- * On some architectures, this may have other side effects like
- * enabling an interrupt and setting the DMA registers.
- */
-extern void enable_dma(dmach_t channel);
-
-/* Disable DMA for this channel
- *
- * On some architectures, this may have other side effects like
- * disabling an interrupt or whatever.
- */
-extern void disable_dma(dmach_t channel);
-
-/* Test whether the specified channel has an active DMA transfer
- */
-extern int dma_channel_active(dmach_t channel);
-
-/* Set the DMA scatter gather list for this channel
- *
- * This should not be called if a DMA channel is enabled,
- * especially since some DMA architectures don't update the
- * DMA address immediately, but defer it to the enable_dma().
- */
-extern void set_dma_sg(dmach_t channel, struct scatterlist *sg, int nr_sg);
-
-/* Set the DMA address for this channel
- *
- * This should not be called if a DMA channel is enabled,
- * especially since some DMA architectures don't update the
- * DMA address immediately, but defer it to the enable_dma().
- */
-extern void set_dma_addr(dmach_t channel, unsigned long physaddr);
-
-/* Set the DMA byte count for this channel
- *
- * This should not be called if a DMA channel is enabled,
- * especially since some DMA architectures don't update the
- * DMA count immediately, but defer it to the enable_dma().
- */
-extern void set_dma_count(dmach_t channel, unsigned long count);
-
-/* Set the transfer direction for this channel
- *
- * This should not be called if a DMA channel is enabled,
- * especially since some DMA architectures don't update the
- * DMA transfer direction immediately, but defer it to the
- * enable_dma().
- */
-extern void set_dma_mode(dmach_t channel, dmamode_t mode);
-
-/* Set the transfer speed for this channel
- */
-extern void set_dma_speed(dmach_t channel, int cycle_ns);
-
-/* Get DMA residue count. After a DMA transfer, this
- * should return zero. Reading this while a DMA transfer is
- * still in progress will return unpredictable results.
- * If called before the channel has been used, it may return 1.
- * Otherwise, it returns the number of _bytes_ left to transfer.
- */
-extern int get_dma_residue(dmach_t channel);
-
-#ifndef NO_DMA
-#define NO_DMA 255
-#endif
-
-#endif /* _ARM_DMA_H */
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