forked from Imagelibrary/rtems
2c4e3ab117
The two RTCs supported by that driver (MCP7940M and EOZ9) use slightly different register order. Add support for a different order to the i2c-rtc driver.
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
|
|
|
|
/**
|
|
* @file
|
|
*
|
|
* @ingroup shared_tod_abeoz9_rtc
|
|
*
|
|
* @brief This file provides the interfaces of @ref shared_tod_abeoz9_rtc.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2024 embedded brains GmbH & Co. KG
|
|
*
|
|
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
|
|
*/
|
|
|
|
#ifndef LIBCHIP_ABEOZ9_RTC_H
|
|
#define LIBCHIP_ABEOZ9_RTC_H
|
|
|
|
#include <libchip/i2c-rtc.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
/**
|
|
* @defgroup shared_tod_abeoz9_rtc
|
|
*
|
|
* @ingroup shared_tod_i2c_rtc
|
|
*
|
|
* @brief RTC driver for the Abracon EOZ9 series.
|
|
*
|
|
* To use this driver, use the following initialization:
|
|
*
|
|
* Define a context for the RTC somewhere:
|
|
*
|
|
* static struct abeoz9_rtc rtc_ctx =
|
|
* ABEOZ9_RTC_INITIALIZER("/dev/i2c-1", 0x56);
|
|
*
|
|
* Then you can use the following for the RTC_Table:
|
|
*
|
|
* ABEOZ9_RTC_TBL_ENTRY("/dev/rtc", &rtc_ctx)
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
struct abeoz9_rtc {
|
|
struct i2c_rtc_base base;
|
|
};
|
|
|
|
/** Hardware init. Used internally. */
|
|
int abeoz9_rtc_hw_init(struct i2c_rtc_base *base);
|
|
|
|
#define ABEOZ9_RTC_INITIALIZER(i2c_path, i2c_address) { \
|
|
.base = I2C_RTC_INITIALIZER( \
|
|
i2c_path, \
|
|
i2c_address, \
|
|
8, \
|
|
I2C_RTC_ORDER_sec_min_hour_day_wkday_month_year, \
|
|
"abeoz9", \
|
|
abeoz9_rtc_hw_init), \
|
|
}
|
|
|
|
#define ABEOZ9_RTC_TBL_ENTRY(dev_name, abeoz9_rtc_ctx) \
|
|
I2C_RTC_TBL_ENTRY(dev_name, abeoz9_rtc_ctx)
|
|
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* LIBCHIP_ABEOZ9_RTC_H */
|