/*      $OpenBSD: spmivar.h,v 1.1 2021/05/26 20:52:21 kettenis Exp $    */
/*
 * Copyright (c) 2021 Mark Kettenis <kettenis@openbsd.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.
 */

#define SPMI_CMD_EXT_WRITEL     0x30
#define SPMI_CMD_EXT_READL      0x38

typedef struct spmi_controller {
        void    *sc_cookie;
        int     (*sc_cmd_read)(void *, uint8_t, uint8_t, uint16_t,
                    void *, size_t);
        int     (*sc_cmd_write)(void *, uint8_t, uint8_t, uint16_t,
                    const void *, size_t);
} *spmi_tag_t;

struct spmi_attach_args {
        spmi_tag_t      sa_tag;
        uint8_t         sa_sid;
        char            *sa_name;
        int             sa_node;
};

#define spmi_cmd_read(sc, sid, cmd, addr, buf, len)                     \
    (*(sc)->sc_cmd_read)((sc)->sc_cookie, (sid), (cmd), (addr), (buf), (len))
#define spmi_cmd_write(sc, sid, cmd, addr, buf, len)                    \
    (*(sc)->sc_cmd_write)((sc)->sc_cookie, (sid), (cmd), (addr), (buf), (len))