95 lines
4.0 KiB
C
95 lines
4.0 KiB
C
/****************************************************************************
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* drivers/timers/mcp794xx.h
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*
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* Copyright (C) 2019 Abdelatif Guettouche. All rights reserved.
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* Author: 2019 Abdelatif Guettouche <abdelatif.guettouche@gmail.com>
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*
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* This file is a part of NuttX:
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*
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* Copyright (C) 2019 Gregory Nutt. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __DRIVERS_TIMERS_MCP794XX_H
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#define __DRIVERS_TIMERS_MCP794XX_H
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define MCP794XX_REG_RTCSEC 0x00 /* Seconds register. */
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# define MCP794XX_RTCSEC_10SEC (7 << 4)
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# define MCP794XX_RTCSEC_ST (1 << 7)
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# define MCP794XX_RTCSEC_BCDMASK 0x7F
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#define MCP794XX_REG_RTCMIN 0x01 /* Minutes register. */
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# define MCP794XX_RTCMIN_10MIN (7 << 4)
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# define MCP794XX_RTCMIN_BCDMASK 0x7F
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#define MCP794XX_REG_RTCHOUR 0x02 /* Hours register. */
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# define MCP794XX_RTCHOUR_10HOUR (3 << 4)
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# define MCP794XX_RTCHOUR_AMPM (1 << 5)
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# define MCP794XX_RTCHOUR_1224 (1 << 6)
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# define MCP794XX_RTCHOUR_BCDMASK 0x3F
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#define MCP794XX_REG_RTCWKDAY 0x03 /* Day register. */
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# define MCP794XX_RTCWKDAY_VBATEN (1 << 3)
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# define MCP794XX_RTCWKDAY_PWRFAIL (1 << 4)
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# define MCP794XX_RTCWKDAY_OSRUN (1 << 5)
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# define MCP794XX_RTCWKDAY_BCDMASK 0x07
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#define MCP794XX_REG_RTCDATE 0x04 /* Date register. */
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# define MCP794XX_RTCDATE_10DATE (3 << 4)
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# define MCP794XX_RTCDATE_BCDMASK 0x3F
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#define MCP794XX_REG_RTCMTH 0x05 /* Month register. */
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# define MCP794XX_RTCMTH_10MONTH (1 << 4)
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# define MCP794XX_RTCMTH_LPYR (1 << 5)
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# define MCP794XX_RTCMTH_BCDMASK 0x1F
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#define MCP794XX_REG_RTCYEAR 0x06 /* Year register. */
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# define MCP794XX_RTCYEAR_10YEAR (15 << 4)
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# define MCP794XX_RTCYEAR_BCDMASK 0xFF
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#define MCP794XX_REG_CONTROL 0x07 /* Control register. */
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# define MCP794XX_CONTROL_SQWFS0 (1 << 0)
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# define MCP794XX_CONTROL_SQWFS1 (1 << 1)
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# define MCP794XX_CONTROL_CRSTRIM (1 << 2)
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# define MCP794XX_CONTROL_EXTOSC (1 << 3)
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# define MCP794XX_CONTROL_ALM0EN (1 << 4)
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# define MCP794XX_CONTROL_ALM1EN (1 << 5)
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# define MCP794XX_CONTROL_SQWEN (1 << 6)
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# define MCP794XX_CONTROL_OUT (1 << 7)
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#define MCP794XX_REG_OSCTRIM 0x08 /* Calibration register. */
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# define MCP794XX_OSCTRIM_SIGN (1 << 7)
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#endif /* __DRIVERS_TIMERS_MCP794XX_H */
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