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36 lines
1.1 KiB
36 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ASM_SPARC_EBUS_DMA_H |
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#define __ASM_SPARC_EBUS_DMA_H |
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struct ebus_dma_info { |
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spinlock_t lock; |
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void __iomem *regs; |
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unsigned int flags; |
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#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 |
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#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 |
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/* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is |
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* set. |
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*/ |
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void (*callback)(struct ebus_dma_info *p, int event, void *cookie); |
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void *client_cookie; |
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unsigned int irq; |
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#define EBUS_DMA_EVENT_ERROR 1 |
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#define EBUS_DMA_EVENT_DMA 2 |
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#define EBUS_DMA_EVENT_DEVICE 4 |
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unsigned char name[64]; |
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}; |
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int ebus_dma_register(struct ebus_dma_info *p); |
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int ebus_dma_irq_enable(struct ebus_dma_info *p, int on); |
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void ebus_dma_unregister(struct ebus_dma_info *p); |
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int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, |
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size_t len); |
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void ebus_dma_prepare(struct ebus_dma_info *p, int write); |
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unsigned int ebus_dma_residue(struct ebus_dma_info *p); |
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unsigned int ebus_dma_addr(struct ebus_dma_info *p); |
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void ebus_dma_enable(struct ebus_dma_info *p, int on); |
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#endif /* __ASM_SPARC_EBUS_DMA_H */
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