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