/*      $NetBSD: scmdvar.h,v 1.1 2021/12/07 17:39:54 brad Exp $ */

/*
 * Copyright (c) 2021 Brad Spencer <brad@anduin.eldar.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _DEV_SCMDVAR_H_
#define _DEV_SCMDVAR_H_

struct scmd_sc {
        int             sc_scmddebug;
        device_t        sc_dev;
        i2c_tag_t       sc_tag;
        i2c_addr_t      sc_addr;
        struct spi_handle *sc_sh;
        kmutex_t        sc_mutex; /* for reading the i2c or spi bus */
        kmutex_t        sc_dying_mutex; /* for cleaning up */
        kmutex_t        sc_condmutex; /* for waiting a long time */
        kcondvar_t      sc_condvar;
        kcondvar_t      sc_cond_dying; /* interlock when cleaning up */
        struct sysctllog *sc_scmdlog;
        uint8_t         sc_topaddr;
        bool            sc_dying;
        bool            sc_opened;
        void            (*sc_func_attach)(struct scmd_sc *);
        int             (*sc_func_acquire_bus)(struct scmd_sc *);
        void            (*sc_func_release_bus)(struct scmd_sc *);
        int             (*sc_func_read_register)(struct scmd_sc *, uint8_t, uint8_t *);
        int             (*sc_func_write_register)(struct scmd_sc *, uint8_t, uint8_t);
};

#endif