1/*	$NetBSD: scmdvar.h,v 1.1 2021/12/07 17:39:54 brad Exp $	*/
2
3/*
4 * Copyright (c) 2021 Brad Spencer <brad@anduin.eldar.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef _DEV_SCMDVAR_H_
20#define _DEV_SCMDVAR_H_
21
22struct scmd_sc {
23	int 		sc_scmddebug;
24	device_t 	sc_dev;
25	i2c_tag_t 	sc_tag;
26	i2c_addr_t 	sc_addr;
27	struct spi_handle *sc_sh;
28	kmutex_t 	sc_mutex; /* for reading the i2c or spi bus */
29	kmutex_t        sc_dying_mutex; /* for cleaning up */
30	kmutex_t 	sc_condmutex; /* for waiting a long time */
31	kcondvar_t	sc_condvar;
32	kcondvar_t	sc_cond_dying; /* interlock when cleaning up */
33	struct sysctllog *sc_scmdlog;
34	uint8_t		sc_topaddr;
35	bool		sc_dying;
36	bool		sc_opened;
37	void		(*sc_func_attach)(struct scmd_sc *);
38	int		(*sc_func_acquire_bus)(struct scmd_sc *);
39	void		(*sc_func_release_bus)(struct scmd_sc *);
40	int		(*sc_func_read_register)(struct scmd_sc *, uint8_t, uint8_t *);
41	int		(*sc_func_write_register)(struct scmd_sc *, uint8_t, uint8_t);
42};
43
44#endif
45