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80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
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// Copyright 2020 Lukas Haubaum
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//
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// Licensed under the GNU Affero General Public License, Version 3;
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// https://www.gnu.org/licenses/agpl-3.0.html
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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/**
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* @file
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*
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* @brief I2C driver for BM8563 RTC
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*
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*/
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#ifndef _RTC_BM8562_H_
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#define _RTC_BM8562_H_
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#include "stdio.h"
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#include <time.h>
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#define BM8563_ADDRESS 0x51
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#define BM8563_CONTROL_STATUS1 0x00
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#define BM8563_TESTC 0b00001000
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#define BM8563_STOP 0b00100000
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#define BM8563_TEST1 0b10000000
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#define BM8563_CONTROL_STATUS2 0x01
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#define BM8563_TIE 0b00000001
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#define BM8563_AIE 0b00000010
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#define BM8563_TF 0b00000100
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#define BM8563_AF 0b00001000
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#define BM8563_TI_TP 0b00010000
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#define BM8563_SECONDS 0x02
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#define BM8563_MINUTES 0x03
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#define BM8563_HOURS 0x04
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#define BM8563_DAY 0x05
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#define BM8563_WEEKDAY 0x06
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#define BM8563_MONTH 0x07
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#define BM8563_YEAR 0x08
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#define BM8563_TIME_SIZE 0x07
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#define BM8563_CENTURY_BIT 0b10000000
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#define BM8563_MINUTE_ALARM 0x09
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#define BM8563_HOUR_ALARM 0x0a
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#define BM8563_DAY_ALARM 0x0b
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#define BM8563_WEEKDAY_ALARM 0x0c
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#define BM8563_ALARM_DISABLE 0b10000000
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#define BM8563_ALARM_NONE 0xff
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#define BM8563_ALARM_SIZE 0x04
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#define BM8563_TIMER_CONTROL 0x0e
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#define BM8563_TIMER_ENABLE 0b10000000
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#define BM8563_TIMER_4_096KHZ 0b00000000
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#define BM8563_TIMER_64HZ 0b00000001
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#define BM8563_TIMER_1HZ 0b00000010
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#define BM8563_TIMER_1_60HZ 0b00000011
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#define BM8563_TIMER 0x0f
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#define BM8563_ALARM_SET 0x0900
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#define BM8563_ALARM_READ 0x0901
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#define BM8563_CONTROL_STATUS1_READ 0x0000
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#define BM8563_CONTROL_STATUS1_WRITE 0x0001
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#define BM8563_CONTROL_STATUS2_READ 0x0100
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#define BM8563_CONTROL_STATUS2_WRITE 0x0101
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#define BM8563_TIMER_CONTROL_READ 0x0e00
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#define BM8563_TIMER_CONTROL_WRITE 0x0e01
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#define BM8563_TIMER_READ 0x0f00
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#define BM8563_TIMER_WRITE 0x0f01
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/* Status codes. */
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#define BM8563_ERROR_NOTTY (-1)
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#define BM8563_OK (0x00)
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#define BM8563_ERR_LOW_VOLTAGE (0x80)
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#endif
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