18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 28c2ecf20Sopenharmony_ci#ifndef __ASM_SPARC_EBUS_DMA_H 38c2ecf20Sopenharmony_ci#define __ASM_SPARC_EBUS_DMA_H 48c2ecf20Sopenharmony_ci 58c2ecf20Sopenharmony_cistruct ebus_dma_info { 68c2ecf20Sopenharmony_ci spinlock_t lock; 78c2ecf20Sopenharmony_ci void __iomem *regs; 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci unsigned int flags; 108c2ecf20Sopenharmony_ci#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 118c2ecf20Sopenharmony_ci#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is 148c2ecf20Sopenharmony_ci * set. 158c2ecf20Sopenharmony_ci */ 168c2ecf20Sopenharmony_ci void (*callback)(struct ebus_dma_info *p, int event, void *cookie); 178c2ecf20Sopenharmony_ci void *client_cookie; 188c2ecf20Sopenharmony_ci unsigned int irq; 198c2ecf20Sopenharmony_ci#define EBUS_DMA_EVENT_ERROR 1 208c2ecf20Sopenharmony_ci#define EBUS_DMA_EVENT_DMA 2 218c2ecf20Sopenharmony_ci#define EBUS_DMA_EVENT_DEVICE 4 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci unsigned char name[64]; 248c2ecf20Sopenharmony_ci}; 258c2ecf20Sopenharmony_ci 268c2ecf20Sopenharmony_ciint ebus_dma_register(struct ebus_dma_info *p); 278c2ecf20Sopenharmony_ciint ebus_dma_irq_enable(struct ebus_dma_info *p, int on); 288c2ecf20Sopenharmony_civoid ebus_dma_unregister(struct ebus_dma_info *p); 298c2ecf20Sopenharmony_ciint ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, 308c2ecf20Sopenharmony_ci size_t len); 318c2ecf20Sopenharmony_civoid ebus_dma_prepare(struct ebus_dma_info *p, int write); 328c2ecf20Sopenharmony_ciunsigned int ebus_dma_residue(struct ebus_dma_info *p); 338c2ecf20Sopenharmony_ciunsigned int ebus_dma_addr(struct ebus_dma_info *p); 348c2ecf20Sopenharmony_civoid ebus_dma_enable(struct ebus_dma_info *p, int on); 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci#endif /* __ASM_SPARC_EBUS_DMA_H */ 37