/* $NetBSD: scmdvar.h,v 1.1 2021/12/07 17:39:54 brad Exp $ */
/*
* Copyright (c) 2021 Brad Spencer <
[email protected]>
*
* 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
