/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _VME_USER_H_
#define _VME_USER_H_

#define VME_USER_BUS_MAX        1

/*
 * VMEbus Master Window Configuration Structure
 */
struct vme_master {
        __u32 enable;           /* State of Window */
        __u64 vme_addr;         /* Starting Address on the VMEbus */
        __u64 size;             /* Window Size */
        __u32 aspace;           /* Address Space */
        __u32 cycle;            /* Cycle properties */
        __u32 dwidth;           /* Maximum Data Width */
#if 0
        char prefetchenable;            /* Prefetch Read Enable State */
        int prefetchsize;               /* Prefetch Read Size (Cache Lines) */
        char wrpostenable;              /* Write Post State */
#endif
} __packed;

/*
 * IOCTL Commands and structures
 */

/* Magic number for use in ioctls */
#define VME_IOC_MAGIC 0xAE

/* VMEbus Slave Window Configuration Structure */
struct vme_slave {
        __u32 enable;           /* State of Window */
        __u64 vme_addr;         /* Starting Address on the VMEbus */
        __u64 size;             /* Window Size */
        __u32 aspace;           /* Address Space */
        __u32 cycle;            /* Cycle properties */
#if 0
        char wrpostenable;              /* Write Post State */
        char rmwlock;                   /* Lock PCI during RMW Cycles */
        char data64bitcapable;          /* non-VMEbus capable of 64-bit Data */
#endif
} __packed;

struct vme_irq_id {
        __u8 level;
        __u8 statid;
};

#define VME_GET_SLAVE _IOR(VME_IOC_MAGIC, 1, struct vme_slave)
#define VME_SET_SLAVE _IOW(VME_IOC_MAGIC, 2, struct vme_slave)
#define VME_GET_MASTER _IOR(VME_IOC_MAGIC, 3, struct vme_master)
#define VME_SET_MASTER _IOW(VME_IOC_MAGIC, 4, struct vme_master)
#define VME_IRQ_GEN _IOW(VME_IOC_MAGIC, 5, struct vme_irq_id)

#endif /* _VME_USER_H_ */