/*	$NetBSD: adbvar.h,v 1.4 2020/04/16 23:29:53 rin Exp $ */

/*-
 * Copyright (c) 2006 Michael Lorenz
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adbvar.h,v 1.4 2020/04/16 23:29:53 rin Exp $");

#ifndef ADBVAR_H
#define ADBVAR_H

#define ADB_CMDADDR(cmd)	((u_int8_t)((cmd) & 0xf0) >> 4)
#define ADBFLUSH(dev)		((((u_int8_t)(dev) & 0x0f) << 4) | 0x01)
#define ADBLISTEN(dev, reg)	((((u_int8_t)(dev) & 0x0f) << 4) | 0x08 | (reg))
#define ADBTALK(dev, reg)	((((u_int8_t)(dev) & 0x0f) << 4) | 0x0c | (reg))

struct adb_bus_accessops {
	void *cookie;
	/* cookie, poll, address/command, length, data */
	int (*send)(void *, int, int, int, uint8_t *);
	void (*poll)(void *);
	void (*autopoll)(void *, int);	/* bitmask of ADB addresses to poll */ 
	int (*set_handler)(void *, void (*)(void *, int, uint8_t *), void *);
};

struct adb_device {
	void *cookie;
	void (*handler)(void *, int, uint8_t *);
	int current_addr;
	int original_addr;
	int handler_id;
};

struct adb_attach_args {
	struct adb_bus_accessops *ops;
	struct adb_device *dev;
};
	
int nadb_print(void *, const char *);


#endif /* ADBVAR_H */