162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#ifndef __ASM_SPARC_EBUS_DMA_H 362306a36Sopenharmony_ci#define __ASM_SPARC_EBUS_DMA_H 462306a36Sopenharmony_ci 562306a36Sopenharmony_cistruct ebus_dma_info { 662306a36Sopenharmony_ci spinlock_t lock; 762306a36Sopenharmony_ci void __iomem *regs; 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci unsigned int flags; 1062306a36Sopenharmony_ci#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER 0x00000001 1162306a36Sopenharmony_ci#define EBUS_DMA_FLAG_TCI_DISABLE 0x00000002 1262306a36Sopenharmony_ci 1362306a36Sopenharmony_ci /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is 1462306a36Sopenharmony_ci * set. 1562306a36Sopenharmony_ci */ 1662306a36Sopenharmony_ci void (*callback)(struct ebus_dma_info *p, int event, void *cookie); 1762306a36Sopenharmony_ci void *client_cookie; 1862306a36Sopenharmony_ci unsigned int irq; 1962306a36Sopenharmony_ci#define EBUS_DMA_EVENT_ERROR 1 2062306a36Sopenharmony_ci#define EBUS_DMA_EVENT_DMA 2 2162306a36Sopenharmony_ci#define EBUS_DMA_EVENT_DEVICE 4 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci unsigned char name[64]; 2462306a36Sopenharmony_ci}; 2562306a36Sopenharmony_ci 2662306a36Sopenharmony_ciint ebus_dma_register(struct ebus_dma_info *p); 2762306a36Sopenharmony_ciint ebus_dma_irq_enable(struct ebus_dma_info *p, int on); 2862306a36Sopenharmony_civoid ebus_dma_unregister(struct ebus_dma_info *p); 2962306a36Sopenharmony_ciint ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, 3062306a36Sopenharmony_ci size_t len); 3162306a36Sopenharmony_civoid ebus_dma_prepare(struct ebus_dma_info *p, int write); 3262306a36Sopenharmony_ciunsigned int ebus_dma_residue(struct ebus_dma_info *p); 3362306a36Sopenharmony_ciunsigned int ebus_dma_addr(struct ebus_dma_info *p); 3462306a36Sopenharmony_civoid ebus_dma_enable(struct ebus_dma_info *p, int on); 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ci#endif /* __ASM_SPARC_EBUS_DMA_H */ 37