Viewing file:  ebus_dma.h (1.07 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* 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 */
|