include/fpga.h

/*
 * (C) Copyright 2002
 * Rich Ireland, Enterasys Networks, rireland@enterasys.com.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <linux/types.h>	       /* for ulong typedef */

#ifndef _FPGA_H_
#define _FPGA_H_

#ifndef CONFIG_MAX_FPGA_DEVICES
#define CONFIG_MAX_FPGA_DEVICES		5
#endif

/* fpga_xxxx function return value definitions */
#define FPGA_SUCCESS		0
#define FPGA_FAIL		-1

/* device numbers must be non-negative */
#define FPGA_INVALID_DEVICE	-1

/* root data type defintions */
typedef enum {			/* typedef fpga_type */
	fpga_min_type,		/* range check value */
	fpga_xilinx,		/* Xilinx Family) */
	fpga_altera,		/* unimplemented */
	fpga_lattice,		/* Lattice family */
	fpga_undefined		/* invalid range check value */
} fpga_type;			/* end, typedef fpga_type */

typedef struct {		/* typedef fpga_desc */
	fpga_type devtype;	/* switch value to select sub-functions */
	void *devdesc;		/* real device descriptor */
} fpga_desc;			/* end, typedef fpga_desc */


typedef enum {
	BIT_FULL = 0,
	BIT_PARTIAL,
} bitstream_type;

/* root function definitions */
extern void fpga_init(void);
extern int fpga_add(fpga_type devtype, void *desc);
extern int fpga_count(void);
extern int fpga_load(int devnum, const void *buf, size_t bsize,
		     bitstream_type bstype);
extern int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
			      bitstream_type bstype);
extern int fpga_dump(int devnum, const void *buf, size_t bsize);
extern int fpga_info(int devnum);
extern const fpga_desc *const fpga_validate(int devnum, const void *buf,
					    size_t bsize, char *fn);

#endif	/* _FPGA_H_ */