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drivers/timers/pcf85263.c: Add a driver for the NXP PCF85263 I2C RTC
This commit is contained in:
Gregory Nutt
@@ -11129,4 +11129,7 @@
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(2015-11-19).
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* drivers/mtd/w25.c: Add support for byte write mode. From Ken Peit
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(2015-11-20).
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* drivers/timers/pcf85263.c and include/nuttx/times/pcf85263.h: Add
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a driver for the NXP PCF85263 I2C RTC. Untested on initial commit
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(2015-11-20).
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+20
-1
@@ -181,9 +181,28 @@ endchoice # Maxim Integrated RTC
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config DS3231_I2C_FREQUENCY
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int "DS1307/DS323x I2C frequency"
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default 400000
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range 1 4000000
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range 1 400000
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endif # RTC_DSXXXX
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config RTC_PCF85263
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bool "PCF85263 RTC Driver"
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default n
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select I2C
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select I2C_TRANSFER
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select RTC_EXTERNAL
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select RTC_DATETIME
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---help---
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Enables support for the Maxim Integrated DS3231 I2C RTC timer.
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if RTC_PCF85263
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config PCF85263_I2C_FREQUENCY
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int "PCF85263 I2C frequency"
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default 400000
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range 1 400000
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endif # RTC_PCF85263
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endif # RTC
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menuconfig WATCHDOG
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@@ -57,6 +57,12 @@ ifeq ($(CONFIG_RTC_DSXXXX),y)
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TMRVPATH = :timers
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endif
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ifeq ($(CONFIG_RTC_PCF85263),y)
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CSRCS += pcf85263.c
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TMRDEPPATH = --dep-path timers
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TMRVPATH = :timers
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endif
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ifeq ($(CONFIG_RTC_DRIVER),y)
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CSRCS += rtc.c
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TMRDEPPATH = --dep-path timers
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@@ -463,7 +463,7 @@ int up_rtc_settime(FAR const struct timespec *tp)
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return -EINVAL;
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}
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#endif
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rtc_dumptime(&tm, "New time");
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/* Construct the message */
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@@ -479,7 +479,7 @@ int up_rtc_settime(FAR const struct timespec *tp)
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buffer[2] = rtc_bin2bcd(newtm.tm_min);
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/* Save hour (0-23) with 24-hour time indicatin */
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/* Save hour (0-23) with 24-hour time indication */
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buffer[3] = rtc_bin2bcd(newtm.tm_hour) | DSXXXX_TIME_24;
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@@ -491,7 +491,7 @@ int up_rtc_settime(FAR const struct timespec *tp)
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buffer[4] = 1;
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#endif
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/* Save the day of the week (1-31) */
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/* Save the day of the month (1-31) */
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buffer[5] = rtc_bin2bcd(newtm.tm_mday);
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File diff suppressed because it is too large
Load Diff
@@ -357,7 +357,7 @@
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# define PCF85263_CTL_OSC_CLKIV (1 << 7) /* Bit 7: Output clock inversion */
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#define PCF85263_CTL_BATTERY_SWITCH 0x26 /* Battery switch control register */
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# define PCF85263_CTL_BATTERY_BSTH (1 << 0) /* Bit 0:
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# define PCF85263_CTL_BATTERY_BSTH (1 << 0) /* Bit 0: Threshold voltage control */
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# define PCF85263_CTL_BATTERY_BSM_SHIFT (1) /* Bits 1-2: Battery switch mode bits */
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# define PCF85263_CTL_BATTERY_BSM_MASK (3 << PCF85263_CTL_BATTERY_BSM_SHIFT)
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# define PCF85263_CTL_BATTERY_BSM_VTH (0 << PCF85263_CTL_BATTERY_BSM_SHIFT) /* Switching at the Vth level */
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@@ -453,7 +453,7 @@
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# define PCF85263_CTL_WDR_SHIFT (2) /* Bits 2-6: Watchdog register bits */
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# define PCF85263_CTL_WDR_MASK (31 << PCF85263_CTL_WDR_SHIFT)
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# define PCF85263_CTL_WDR(n) ((uint9_t)(n) << PCF85263_CTL_WDR_SHIFT)
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# define PCF85263_CTL_WDM (1 << 7) /* Bit 7: Watchdog mode
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# define PCF85263_CTL_WDM (1 << 7) /* Bit 7: Watchdog mode */
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/* Stop */
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@@ -0,0 +1,90 @@
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/****************************************************************************
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* include/nuttx/timers/pcf85263.h
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*
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* Copyright (C) 2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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 __INCLUDE_NUTTX_TIMERS_PCF85263_H
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#define __INCLUDE_NUTTX_TIMERS_PCF85263_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_RTC_PCF85263
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Name: pcf85263_rtc_initialize
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*
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* Description:
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* Initialize the hardware RTC per the selected configuration. This function is
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* called once during the OS initialization sequence by board-specific logic.
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*
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* After pcf85263_rtc_initialize() is called, the OS function clock_synchronize()
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* should also be called to synchronize the system timer to a hardware RTC. That
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* operation is normally performed automatically by the system during clock
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* initialization. However, when an external RTC is used, the board logic will
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* need to explicitly re-synchronize the system timer to the RTC when the RTC
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* becomes available.
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*
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* Input Parameters:
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* None
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno on failure
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*
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************************************************************************************/
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struct i2c_dev_s; /* Forward reference */
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int pcf85263_rtc_initialize(FAR struct i2c_dev_s *i2c);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_RTC_PCF85263 */
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#endif /* __INCLUDE_NUTTX_TIMERS_PCF85263_H */
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