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drivers/timers/ds3213.c: Extend to include support for the DS1307 RTC

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This commit is contained in:
Gregory Nutt
2015-11-18 08:43:19 -06:00
parent 4579f0c1fc
commit 622ea95ab1
6 changed files with 269 additions and 235 deletions
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ChangeLog
+3
View File
@@ -11114,3 +11114,6 @@
* configs/boardctl.h, Kconfig, include/sys/boardctl.h, and nuttx/board.h:
Add a command to the boardctl() interface to obtain a board unique ID
(2015-11-18).
* drivers/timers/ds3231.c: Driver extended to include support for the
DS1307 RTC (2015-11-18).
drivers/timers/Kconfig
+21 -5
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@@ -118,8 +118,8 @@ config RTC_IOCTL
endif # RTC_DRIVER
config RTC_DS3231
bool "DS3231 RTC Driver"
config RTC_DS3XXX
bool "DS3231/DS1307 RTC Driver"
default n
select I2C
select I2C_TRANSFER
@@ -127,14 +127,30 @@ config RTC_DS3231
---help---
Enables support for the Maxim Integrated DS3231 I2C RTC timer.
if RTC_DS3231
if RTC_DS3XXX
choice
prompt "Maxim Integrated RTC"
default RTC_DS3231
config RTC_DS1307
bool "DS1307"
---help---
Enables support for the Maxim Integrated DS3231 I2C RTC timer.
config RTC_DS3231
bool "DS3231"
---help---
Enables support for the Maxim Integrated DS1307 I2C RTC timer.
endchoice # Maxim Integrated RTC
config DS3231_I2C_FREQUENCY
int "DS3231 I2C frequency"
int "DS3231/DS1307 I2C frequency"
default 400000
range 1 4000000
endif # RTC_DS3231
endif # RTC_DS3XXX
endif # RTC
menuconfig WATCHDOG
drivers/timers/Make.defs
+1 -1
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@@ -51,7 +51,7 @@ ifeq ($(CONFIG_TIMER),y)
TMRVPATH = :timers
endif
ifeq ($(CONFIG_RTC_DS3231),y)
ifeq ($(CONFIG_RTC_DS3XXX),y)
CSRCS += ds3231.c
TMRDEPPATH = --dep-path timers
TMRVPATH = :timers
drivers/timers/ds3231.c
+18 -18
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@@ -50,7 +50,7 @@
#include "ds3231.h"
#ifdef CONFIG_RTC_DS3231
#ifdef CONFIG_RTC_DS3XXX
/************************************************************************************
* Pre-processor Definitions
@@ -216,13 +216,13 @@ static int rtc_bcd2bin(uint8_t value)
************************************************************************************/
/************************************************************************************
* Name: ds3231_rtc_initialize
* Name: ds3xxx_rtc_initialize
*
* Description:
* Initialize the hardware RTC per the selected configuration. This function is
* called once during the OS initialization sequence by board-specific logic.
*
* After ds3231_rtc_initialize() is called, the OS function clock_synchronize()
* After ds3xxx_rtc_initialize() is called, the OS function clock_synchronize()
* should also be called to synchronize the system timer to a hardware RTC. That
* operation is normally performed automatically by the system during clock
* initialization. However, when an external RTC is used, the board logic will
@@ -237,7 +237,7 @@ static int rtc_bcd2bin(uint8_t value)
*
************************************************************************************/
int ds3231_rtc_initialize(FAR struct i2c_dev_s *i2c)
int ds3xxx_rtc_initialize(FAR struct i2c_dev_s *i2c)
{
/* Remember the i2c device and claim that the RTC is enabled */
@@ -280,7 +280,7 @@ int up_rtc_getdatetime(FAR struct tm *tp)
/* Select to begin reading at the seconds register */
secaddr = DS3231_TIME_SECR;
secaddr = DS3XXX_TIME_SECR;
msg[0].addr = DS3231_I2C_ADDRESS;
msg[0].flags = 0;
@@ -331,35 +331,35 @@ int up_rtc_getdatetime(FAR struct tm *tp)
/* Format the return time */
/* Return seconds (0-61) */
tp->tm_sec = rtc_bcd2bin(buffer[0] & DS3231_TIME_SEC_BCDMASK);
tp->tm_sec = rtc_bcd2bin(buffer[0] & DS3XXX_TIME_SEC_BCDMASK);
/* Return minutes (0-59) */
tp->tm_min = rtc_bcd2bin(buffer[1] & DS3231_TIME_MIN_BCDMASK);
tp->tm_min = rtc_bcd2bin(buffer[1] & DS3XXX_TIME_MIN_BCDMASK);
/* Return hour (0-23). This assumes 24-hour time was set. */
tp->tm_hour = rtc_bcd2bin(buffer[2] & DS3231_TIME_HOUR24_BCDMASK);
tp->tm_hour = rtc_bcd2bin(buffer[2] & DS3XXX_TIME_HOUR24_BCDMASK);
#if defined(CONFIG_LIBC_LOCALTIME) || defined(CONFIG_TIME_EXTENDED)
/* Return the day of the week (0-6) */
tp->tm_wday = (rtc_bcd2bin(buffer[3]) & DS3231_TIME_DAY_MASK) - 1;
tp->tm_wday = (rtc_bcd2bin(buffer[3]) & DS3XXX_TIME_DAY_MASK) - 1;
#endif
/* Return the day of the month (1-31) */
tp->tm_mday = rtc_bcd2bin(buffer[4] & DS3231_TIME_DATE_BCDMASK);
tp->tm_mday = rtc_bcd2bin(buffer[4] & DS3XXX_TIME_DATE_BCDMASK);
/* Return the month (0-11) */
tp->tm_mon = rtc_bcd2bin(buffer[5] & DS3231_TIME_MONTH_BCDMASK) - 1;
tp->tm_mon = rtc_bcd2bin(buffer[5] & DS3XXX_TIME_MONTH_BCDMASK) - 1;
/* Return the years since 1990 */
tmp = rtc_bcd2bin(buffer[5] & DS3231_TIME_YEAR_BCDMASK);
tmp = rtc_bcd2bin(buffer[5] & DS3XXX_TIME_YEAR_BCDMASK);
if ((buffer[6] & DS3231_TIME_CENTURY_MASK) == DS3231_TIME_1900)
if ((buffer[6] & DS3XXX_TIME_CENTURY_MASK) == DS3XXX_TIME_1900)
{
tp->tm_year = tmp;
}
@@ -429,7 +429,7 @@ int up_rtc_settime(FAR const struct timespec *tp)
/* Construct the message */
/* Write starting with the seconds regiser */
buffer[0] = DS3231_TIME_SECR;
buffer[0] = DS3XXX_TIME_SECR;
/* Save seconds (0-59) converted to BCD */
@@ -441,7 +441,7 @@ int up_rtc_settime(FAR const struct timespec *tp)
/* Save hour (0-23) with 24-hour time indicatin */
buffer[3] = rtc_bin2bcd(newtm.tm_hour) | DS3231_TIME_24;
buffer[3] = rtc_bin2bcd(newtm.tm_hour) | DS3XXX_TIME_24;
/* Save the day of the week (1-7) */
@@ -461,14 +461,14 @@ int up_rtc_settime(FAR const struct timespec *tp)
{
/* Convert years in the range 1900-1999 */
century = DS3231_TIME_1900;
century = DS3XXX_TIME_1900;
year = newtm.tm_year;
}
else
{
/* Convert years in the range 2000-2099 */
century = DS3231_TIME_2000;
century = DS3XXX_TIME_2000;
year = newtm.tm_year - 100;
}
@@ -522,4 +522,4 @@ int up_rtc_settime(FAR const struct timespec *tp)
return OK;
}
#endif /* CONFIG_RTC_DS3231 */
#endif /* CONFIG_RTC_DS3XXX */
drivers/timers/ds3231.h
+221 -206
View File
@@ -46,229 +46,244 @@
* Pre-processor Definitions
****************************************************************************/
#define DS3231_TIME_SECR 0x00 /* Seconds register */
# define DS3231_TIME_SEC_SHIFT 0 /* Bits 0-3: Seconds, range 0-9 */
# define DS3231_TIME_SEC_MASK (15 << DS3231_TIME_SEC_SHIFT)
# define DS3231_TIME_SEC(n) ((uint8_t)(n) << DS3231_TIME_SEC_SHIFT)
# define DS3231_TIME_10SEC_SHIFT 4 /* Bits 4-6: 10 seconds, range 0-5 */
# define DS3231_TIME_10SEC_MASK (7 << DS3231_TIME_10SEC_SHIFT)
# define DS3231_TIME_10SEC(n) ((uint8_t)(n) << DS3231_TIME_10SEC_SHIFT)
# define DS3231_TIME_SEC_BCDMASK (DS3231_TIME_SEC_MASK | DS3231_TIME_10SEC_MASK)
#define DS3XXX_TIME_SECR 0x00 /* Seconds register */
# define DS3XXX_TIME_SEC_SHIFT 0 /* Bits 0-3: Seconds, range 0-9 */
# define DS3XXX_TIME_SEC_MASK (15 << DS3XXX_TIME_SEC_SHIFT)
# define DS3XXX_TIME_SEC(n) ((uint8_t)(n) << DS3XXX_TIME_SEC_SHIFT)
# define DS3XXX_TIME_10SEC_SHIFT 4 /* Bits 4-6: 10 seconds, range 0-5 */
# define DS3XXX_TIME_10SEC_MASK (7 << DS3XXX_TIME_10SEC_SHIFT)
# define DS3XXX_TIME_10SEC(n) ((uint8_t)(n) << DS3XXX_TIME_10SEC_SHIFT)
# define DS3XXX_TIME_SEC_BCDMASK (DS3XXX_TIME_SEC_MASK | DS3XXX_TIME_10SEC_MASK)
#define DS3231_TIME_MINR 0x01 /* Minutes register */
# define DS3231_TIME_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3231_TIME_MIN_MASK (15 << DS3231_TIME_MIN_SHIFT)
# define DS3231_TIME_MIN(n) ((uint8_t)(n) << DS3231_TIME_MIN_SHIFT)
# define DS3231_TIME_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3231_TIME_10MIN_MASK (7 << DS3231_TIME_10MIN_SHIFT)
# define DS3231_TIME_10MIN(n) ((uint8_t)(n) << DS3231_TIME_10MIN_SHIFT)
# define DS3231_TIME_MIN_BCDMASK (DS3231_TIME_MIN_MASK | DS3231_TIME_10MIN_MASK)
#define DS3XXX_TIME_MINR 0x01 /* Minutes register */
# define DS3XXX_TIME_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3XXX_TIME_MIN_MASK (15 << DS3XXX_TIME_MIN_SHIFT)
# define DS3XXX_TIME_MIN(n) ((uint8_t)(n) << DS3XXX_TIME_MIN_SHIFT)
# define DS3XXX_TIME_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3XXX_TIME_10MIN_MASK (7 << DS3XXX_TIME_10MIN_SHIFT)
# define DS3XXX_TIME_10MIN(n) ((uint8_t)(n) << DS3XXX_TIME_10MIN_SHIFT)
# define DS3XXX_TIME_MIN_BCDMASK (DS3XXX_TIME_MIN_MASK | DS3XXX_TIME_10MIN_MASK)
#define DS3231_TIME_HOURR 0x02 /* Hours register */
# define DS3231_TIME_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3231_TIME_HOUR_MASK (15 << DS3231_TIME_HOUR_SHIFT)
# define DS3231_TIME_HOUR(n) ((uint8_t)(n) << DS3231_TIME_HOUR_SHIFT)
# define DS3231_TIME_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3231_TIME_10HOUR12_MASK (1 << DS3231_TIME_10HOUR12_SHIFT)
# define DS3231_TIME_10HOUR12(n) ((uint8_t)(n) << DS3231_TIME_10HOUR12_SHIFT)
# define DS3231_TIME_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3231_TIME_10HOUR24_MASK (3 << DS3231_TIME_10HOUR24_SHIFT)
# define DS3231_TIME_10HOUR24(n) ((uint8_t)(n) << DS3231_TIME_10HOUR24_SHIFT)
# define DS3231_TIME_HOUR12_BCDMASK (DS3231_TIME_HOUR_MASK | DS3231_TIME_10HOUR12_MASK)
# define DS3231_TIME_HOUR24_BCDMASK (DS3231_TIME_HOUR_MASK | DS3231_TIME_10HOUR24_MASK)
# define DS3231_TIME_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3231_TIME_AMPM_MASK (1 << DS3231_TIME_AMPM_SHIFT)
# define DS3231_TIME_AM ((uint8_t)(0) << DS3231_TIME_AMPM_SHIFT)
# define DS3231_TIME_PM ((uint8_t)(1) << DS3231_TIME_AMPM_SHIFT)
# define DS3231_TIME_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3231_TIME_1224_MASK (1 << DS3231_TIME_1224_SHIFT)
# define DS3231_TIME_24 ((uint8_t)(0) << DS3231_TIME_1224_SHIFT)
# define DS3231_TIME_12 ((uint8_t)(1) << DS3231_TIME_1224_SHIFT)
#define DS3XXX_TIME_HOURR 0x02 /* Hours register */
# define DS3XXX_TIME_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3XXX_TIME_HOUR_MASK (15 << DS3XXX_TIME_HOUR_SHIFT)
# define DS3XXX_TIME_HOUR(n) ((uint8_t)(n) << DS3XXX_TIME_HOUR_SHIFT)
# define DS3XXX_TIME_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3XXX_TIME_10HOUR12_MASK (1 << DS3XXX_TIME_10HOUR12_SHIFT)
# define DS3XXX_TIME_10HOUR12(n) ((uint8_t)(n) << DS3XXX_TIME_10HOUR12_SHIFT)
# define DS3XXX_TIME_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3XXX_TIME_10HOUR24_MASK (3 << DS3XXX_TIME_10HOUR24_SHIFT)
# define DS3XXX_TIME_10HOUR24(n) ((uint8_t)(n) << DS3XXX_TIME_10HOUR24_SHIFT)
# define DS3XXX_TIME_HOUR12_BCDMASK (DS3XXX_TIME_HOUR_MASK | DS3XXX_TIME_10HOUR12_MASK)
# define DS3XXX_TIME_HOUR24_BCDMASK (DS3XXX_TIME_HOUR_MASK | DS3XXX_TIME_10HOUR24_MASK)
# define DS3XXX_TIME_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3XXX_TIME_AMPM_MASK (1 << DS3XXX_TIME_AMPM_SHIFT)
# define DS3XXX_TIME_AM ((uint8_t)(0) << DS3XXX_TIME_AMPM_SHIFT)
# define DS3XXX_TIME_PM ((uint8_t)(1) << DS3XXX_TIME_AMPM_SHIFT)
# define DS3XXX_TIME_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3XXX_TIME_1224_MASK (1 << DS3XXX_TIME_1224_SHIFT)
# define DS3XXX_TIME_24 ((uint8_t)(0) << DS3XXX_TIME_1224_SHIFT)
# define DS3XXX_TIME_12 ((uint8_t)(1) << DS3XXX_TIME_1224_SHIFT)
#define DS3231_TIME_DAYR 0x03 /* Day of the week register */
# define DS3231_TIME_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3231_TIME_DAY_MASK (7 << DS3231_TIME_DAY_SHIFT)
# define DS3231_TIME_DAY(n) ((uint8_t)(n) << DS3231_TIME_DAY_SHIFT)
#define DS3XXX_TIME_DAYR 0x03 /* Day of the week register */
# define DS3XXX_TIME_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3XXX_TIME_DAY_MASK (7 << DS3XXX_TIME_DAY_SHIFT)
# define DS3XXX_TIME_DAY(n) ((uint8_t)(n) << DS3XXX_TIME_DAY_SHIFT)
#define DS3231_TIME_DATER 0x04 /* Date register */
# define DS3231_TIME_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3231_TIME_DATE_MASK (15 << DS3231_TIME_DATE_SHIFT)
# define DS3231_TIME_DATE(n) ((uint8_t)(n) << DS3231_TIME_DATE_SHIFT)
# define DS3231_TIME_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3231_TIME_10DATE_MASK (3 << DS3231_TIME_10DATE_SHIFT)
# define DS3231_TIME_10DATE(n) ((uint8_t)(n) << DS3231_TIME_10DATE_SHIFT)
# define DS3231_TIME_DATE_BCDMASK (DS3231_TIME_DATE_MASK | DS3231_TIME_10DATE_MASK)
#define DS3XXX_TIME_DATER 0x04 /* Date register */
# define DS3XXX_TIME_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3XXX_TIME_DATE_MASK (15 << DS3XXX_TIME_DATE_SHIFT)
# define DS3XXX_TIME_DATE(n) ((uint8_t)(n) << DS3XXX_TIME_DATE_SHIFT)
# define DS3XXX_TIME_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3XXX_TIME_10DATE_MASK (3 << DS3XXX_TIME_10DATE_SHIFT)
# define DS3XXX_TIME_10DATE(n) ((uint8_t)(n) << DS3XXX_TIME_10DATE_SHIFT)
# define DS3XXX_TIME_DATE_BCDMASK (DS3XXX_TIME_DATE_MASK | DS3XXX_TIME_10DATE_MASK)
#define DS3231_TIME_MONTHR 0x05 /* Month register */
# define DS3231_TIME_MONTH_SHIFT 0 /* Bits 0-3: Month, range 0-9 */
# define DS3231_TIME_MONTH_MASK (15 << DS3231_TIME_MONTH_SHIFT)
# define DS3231_TIME_MONTH(n) ((uint8_t)(n) << DS3231_TIME_MONTH_SHIFT)
# define DS3231_TIME_10MONTH_SHIFT 4 /* Bit 4: 10 month, range 0-1 */
# define DS3231_TIME_10MONTH_MASK (1 << DS3231_TIME_10MONTH_SHIFT)
# define DS3231_TIME_10MONTH(n) ((uint8_t)(n) << DS3231_TIME_10MONTH_SHIFT)
# define DS3231_TIME_MONTH_BCDMASK (DS3231_TIME_MONTH_MASK | DS3231_TIME_10MONTH_MASK)
# define DS3231_TIME_CENTURY_SHIFT 7 /* Bit 7: AM/PM Indication */
# define DS3231_TIME_CENTURY_MASK (1 << DS3231_TIME_CENTURY_SHIFT)
# define DS3231_TIME_1900 ((uint8_t)(0) << DS3231_TIME_CENTURY_SHIFT)
# define DS3231_TIME_2000 ((uint8_t)(1) << DS3231_TIME_CENTURY_SHIFT)
#define DS3XXX_TIME_MONTHR 0x05 /* Month register */
# define DS3XXX_TIME_MONTH_SHIFT 0 /* Bits 0-3: Month, range 0-9 */
# define DS3XXX_TIME_MONTH_MASK (15 << DS3XXX_TIME_MONTH_SHIFT)
# define DS3XXX_TIME_MONTH(n) ((uint8_t)(n) << DS3XXX_TIME_MONTH_SHIFT)
# define DS3XXX_TIME_10MONTH_SHIFT 4 /* Bit 4: 10 month, range 0-1 */
# define DS3XXX_TIME_10MONTH_MASK (1 << DS3XXX_TIME_10MONTH_SHIFT)
# define DS3XXX_TIME_10MONTH(n) ((uint8_t)(n) << DS3XXX_TIME_10MONTH_SHIFT)
# define DS3XXX_TIME_MONTH_BCDMASK (DS3XXX_TIME_MONTH_MASK | DS3XXX_TIME_10MONTH_MASK)
# define DS3XXX_TIME_CENTURY_SHIFT 7 /* Bit 7: AM/PM Indication */
# define DS3XXX_TIME_CENTURY_MASK (1 << DS3XXX_TIME_CENTURY_SHIFT)
# define DS3XXX_TIME_1900 ((uint8_t)(0) << DS3XXX_TIME_CENTURY_SHIFT)
# define DS3XXX_TIME_2000 ((uint8_t)(1) << DS3XXX_TIME_CENTURY_SHIFT)
#define DS3231_TIME_YEARR 0x06 /* Date register */
# define DS3231_TIME_YEAR_SHIFT 0 /* Bits 0-3: Year, range 0-9 */
# define DS3231_TIME_YEAR_MASK (15 << DS3231_TIME_YEAR_SHIFT)
# define DS3231_TIME_YEAR(n) ((uint8_t)(n) << DS3231_TIME_YEAR_SHIFT)
# define DS3231_TIME_10YEAR_SHIFT 4 /* Bits 4-7: 10 year, range 0-9 */
# define DS3231_TIME_10YEAR_MASK (15 << DS3231_TIME_10YEAR_SHIFT)
# define DS3231_TIME_10YEAR(n) ((uint8_t)(n) << DS3231_TIME_10YEAR_SHIFT)
# define DS3231_TIME_YEAR_BCDMASK (DS3231_TIME_YEAR_MASK | DS3231_TIME_10YEAR_MASK)
#define DS3XXX_TIME_YEARR 0x06 /* Date register */
# define DS3XXX_TIME_YEAR_SHIFT 0 /* Bits 0-3: Year, range 0-9 */
# define DS3XXX_TIME_YEAR_MASK (15 << DS3XXX_TIME_YEAR_SHIFT)
# define DS3XXX_TIME_YEAR(n) ((uint8_t)(n) << DS3XXX_TIME_YEAR_SHIFT)
# define DS3XXX_TIME_10YEAR_SHIFT 4 /* Bits 4-7: 10 year, range 0-9 */
# define DS3XXX_TIME_10YEAR_MASK (15 << DS3XXX_TIME_10YEAR_SHIFT)
# define DS3XXX_TIME_10YEAR(n) ((uint8_t)(n) << DS3XXX_TIME_10YEAR_SHIFT)
# define DS3XXX_TIME_YEAR_BCDMASK (DS3XXX_TIME_YEAR_MASK | DS3XXX_TIME_10YEAR_MASK)
#define DS3231_ALARM1_SECR 0x07 /* Alarm1 seconds register */
# define DS3231_ALARM1_SEC_SHIFT 0 /* Bits 0-3: Seconds, range 0-9 */
# define DS3231_ALARM1_SEC_MASK (15 << DS3231_ALARM1_SEC_SHIFT)
# define DS3231_ALARM1_SEC(n) ((uint8_t)(n) << DS3231_ALARM1_SEC_SHIFT)
# define DS3231_ALARM1_10SEC_SHIFT 4 /* Bits 4-6: 10 seconds, range 0-5 */
# define DS3231_ALARM1_10SEC_MASK (7 << DS3231_ALARM1_10SEC_SHIFT)
# define DS3231_ALARM1_10SEC(n) ((uint8_t)(n) << DS3231_ALARM1_10SEC_SHIFT)
# define DS3231_ALARM1_SEC_BCDMASK (DS3231_ALARM1_SEC_MASK | DS3231_ALARM1_10SEC_MASK)
# define DS3231_ALARM1_A1M1_SHIFT 7 /* Bits 7: A1M1 mask */
# define DS3231_ALARM1_A1M1_MASK (1 << DS3231_ALARM1_A1M1_SHIFT)
# define DS3231_ALARM1_A1M1(n) ((uint8_t)(n) << DS3231_ALARM1_A1M1_SHIFT)
#ifdef CONFIG_RTC_DS1307
# define DS1307_CR 0x07 /* Control register */
# define DS1307_CR_RS_SHIFT (3) /* Bits 0-1: Rate selection */
# define DS1307_CR_RS_MASK (3 << DS1307_CR_RS_SHIFT)
# define DS1307_CR_RS_1HZ (0 << DS1307_CR_RS_SHIFT) /* 1Hz */
# define DS1307_CR_RS_4KHZ (1 << DS1307_CR_RS_SHIFT) /* 4.096kHz */
# define DS1307_CR_RS_8KHZ (2 << DS1307_CR_RS_SHIFT) /* 8.192kHz */
# define DS1307_CR_RS_32KHZ (3 << DS1307_CR_RS_SHIFT) /* 32.768kHz */
# define DS1307_CR_SQWE (1 << 4) /* Bit 4: Square wave enable */
# define DS1307_CR_OUT (1 << 7) /* Bit 7: Output control */
# define DS1307_RAM_BASE 0x08 /* 0x08-0x3f: 56x8 RAM */
#endif
#define DS3231_ALARM1_MINR 0x08 /* Alarm1 minutes register */
# define DS3231_ALARM1_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3231_ALARM1_MIN_MASK (15 << DS3231_ALARM1_MIN_SHIFT)
# define DS3231_ALARM1_MIN(n) ((uint8_t)(n) << DS3231_ALARM1_MIN_SHIFT)
# define DS3231_ALARM1_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3231_ALARM1_10MIN_MASK (7 << DS3231_ALARM1_10MIN_SHIFT)
# define DS3231_ALARM1_10MIN(n) ((uint8_t)(n) << DS3231_ALARM1_10MIN_SHIFT)
# define DS3231_ALARM1_MIN_BCDMASK (DS3231_ALARM1_MIN_MASK | DS3231_ALARM1_10MIN_MASK)
# define DS3231_ALARM1_A1M2_SHIFT 7 /* Bits 7: A1M2 mask */
# define DS3231_ALARM1_A1M2_MASK (1 << DS3231_ALARM1_A1M2_SHIFT)
# define DS3231_ALARM1_A1M2(n) ((uint8_t)(n) << DS3231_ALARM1_A1M2_SHIFT)
#ifdef CONFIG_RTC_DS3231
# define DS3231_ALARM1_SECR 0x07 /* Alarm1 seconds register */
# define DS3231_ALARM1_SEC_SHIFT 0 /* Bits 0-3: Seconds, range 0-9 */
# define DS3231_ALARM1_SEC_MASK (15 << DS3231_ALARM1_SEC_SHIFT)
# define DS3231_ALARM1_SEC(n) ((uint8_t)(n) << DS3231_ALARM1_SEC_SHIFT)
# define DS3231_ALARM1_10SEC_SHIFT 4 /* Bits 4-6: 10 seconds, range 0-5 */
# define DS3231_ALARM1_10SEC_MASK (7 << DS3231_ALARM1_10SEC_SHIFT)
# define DS3231_ALARM1_10SEC(n) ((uint8_t)(n) << DS3231_ALARM1_10SEC_SHIFT)
# define DS3231_ALARM1_SEC_BCDMASK (DS3231_ALARM1_SEC_MASK | DS3231_ALARM1_10SEC_MASK)
# define DS3231_ALARM1_A1M1_SHIFT 7 /* Bits 7: A1M1 mask */
# define DS3231_ALARM1_A1M1_MASK (1 << DS3231_ALARM1_A1M1_SHIFT)
# define DS3231_ALARM1_A1M1(n) ((uint8_t)(n) << DS3231_ALARM1_A1M1_SHIFT)
#define DS3231_ALARM1_HOURR 0x09 /* Alarm1 hours register */
# define DS3231_ALARM1_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3231_ALARM1_HOUR_MASK (15 << DS3231_ALARM1_HOUR_SHIFT)
# define DS3231_ALARM1_HOUR(n) ((uint8_t)(n) << DS3231_ALARM1_HOUR_SHIFT)
# define DS3231_ALARM1_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3231_ALARM1_10HOUR12_MASK (1 << DS3231_ALARM1_10HOUR12_SHIFT)
# define DS3231_ALARM1_10HOUR12(n) ((uint8_t)(n) << DS3231_ALARM1_10HOUR12_SHIFT)
# define DS3231_ALARM1_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3231_ALARM1_10HOUR24_MASK (3 << DS3231_ALARM1_10HOUR24_SHIFT)
# define DS3231_ALARM1_10HOUR24(n) ((uint8_t)(n) << DS3231_ALARM1_10HOUR24_SHIFT)
# define DS3231_ALARM1_HOUR12_BCDMASK (DS3231_ALARM1_HOUR_MASK | DS3231_ALARM1_10HOUR12_MASK)
# define DS3231_ALARM1_HOUR24_BCDMASK (DS3231_ALARM1_HOUR_MASK | DS3231_ALARM1_10HOUR24_MASK)
# define DS3231_ALARM1_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3231_ALARM1_AMPM_MASK (1 << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_AM ((uint8_t)(0) << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_PM ((uint8_t)(1) << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3231_ALARM1_1224_MASK (1 << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_12 ((uint8_t)(0) << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_24 ((uint8_t)(1) << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_A1M3_SHIFT 7 /* Bits 7: A1M3 mask */
# define DS3231_ALARM1_A1M3_MASK (1 << DS3231_ALARM1_A1M3_SHIFT)
# define DS3231_ALARM1_A1M3(n) ((uint8_t)(n) << DS3231_ALARM1_A1M3_SHIFT)
# define DS3231_ALARM1_MINR 0x08 /* Alarm1 minutes register */
# define DS3231_ALARM1_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3231_ALARM1_MIN_MASK (15 << DS3231_ALARM1_MIN_SHIFT)
# define DS3231_ALARM1_MIN(n) ((uint8_t)(n) << DS3231_ALARM1_MIN_SHIFT)
# define DS3231_ALARM1_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3231_ALARM1_10MIN_MASK (7 << DS3231_ALARM1_10MIN_SHIFT)
# define DS3231_ALARM1_10MIN(n) ((uint8_t)(n) << DS3231_ALARM1_10MIN_SHIFT)
# define DS3231_ALARM1_MIN_BCDMASK (DS3231_ALARM1_MIN_MASK | DS3231_ALARM1_10MIN_MASK)
# define DS3231_ALARM1_A1M2_SHIFT 7 /* Bits 7: A1M2 mask */
# define DS3231_ALARM1_A1M2_MASK (1 << DS3231_ALARM1_A1M2_SHIFT)
# define DS3231_ALARM1_A1M2(n) ((uint8_t)(n) << DS3231_ALARM1_A1M2_SHIFT)
#define DS3231_ALARM1_DAYDATER 0x0a /* Alarm1 date / day of the week register */
# define DS3231_ALARM1_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3231_ALARM1_DAY_MASK (7 << DS3231_ALARM1_DAY_SHIFT)
# define DS3231_ALARM1_DAY(n) ((uint8_t)(n) << DS3231_ALARM1_DAY_SHIFT)
# define DS3231_ALARM1_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3231_ALARM1_DATE_MASK (15 << DS3231_ALARM1_DATE_SHIFT)
# define DS3231_ALARM1_DATE(n) ((uint8_t)(n) << DS3231_ALARM1_DATE_SHIFT)
# define DS3231_ALARM1_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3231_ALARM1_10DATE_MASK (3 << DS3231_ALARM1_10DATE_SHIFT)
# define DS3231_ALARM1_10DATE(n) ((uint8_t)(n) << DS3231_ALARM1_10DATE_SHIFT)
# define DS3231_ALARM1_DATE_BCDMASK (DS3231_ALARM1_DATE_MASK | DS3231_ALARM1_10DATE_MASK)
# define DS3231_ALARM1_DYDT_SHIFT 6 /* Bits 6: DY/DT */
# define DS3231_ALARM1_DYDT_MASK (1 << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_DYDT_DATE ((uint8_t)(0) << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_DYDT_DAY ((uint8_t)(1) << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_A1M4_SHIFT 7 /* Bits 7: A1M4 mask */
# define DS3231_ALARM1_A1M4_MASK (1 << DS3231_ALARM1_A1M4_SHIFT)
# define DS3231_ALARM1_A1M4(n) ((uint8_t)(n) << DS3231_ALARM1_A1M4_SHIFT)
# define DS3231_ALARM1_HOURR 0x09 /* Alarm1 hours register */
# define DS3231_ALARM1_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3231_ALARM1_HOUR_MASK (15 << DS3231_ALARM1_HOUR_SHIFT)
# define DS3231_ALARM1_HOUR(n) ((uint8_t)(n) << DS3231_ALARM1_HOUR_SHIFT)
# define DS3231_ALARM1_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3231_ALARM1_10HOUR12_MASK (1 << DS3231_ALARM1_10HOUR12_SHIFT)
# define DS3231_ALARM1_10HOUR12(n) ((uint8_t)(n) << DS3231_ALARM1_10HOUR12_SHIFT)
# define DS3231_ALARM1_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3231_ALARM1_10HOUR24_MASK (3 << DS3231_ALARM1_10HOUR24_SHIFT)
# define DS3231_ALARM1_10HOUR24(n) ((uint8_t)(n) << DS3231_ALARM1_10HOUR24_SHIFT)
# define DS3231_ALARM1_HOUR12_BCDMASK (DS3231_ALARM1_HOUR_MASK | DS3231_ALARM1_10HOUR12_MASK)
# define DS3231_ALARM1_HOUR24_BCDMASK (DS3231_ALARM1_HOUR_MASK | DS3231_ALARM1_10HOUR24_MASK)
# define DS3231_ALARM1_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3231_ALARM1_AMPM_MASK (1 << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_AM ((uint8_t)(0) << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_PM ((uint8_t)(1) << DS3231_ALARM1_AMPM_SHIFT)
# define DS3231_ALARM1_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3231_ALARM1_1224_MASK (1 << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_12 ((uint8_t)(0) << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_24 ((uint8_t)(1) << DS3231_ALARM1_1224_SHIFT)
# define DS3231_ALARM1_A1M3_SHIFT 7 /* Bits 7: A1M3 mask */
# define DS3231_ALARM1_A1M3_MASK (1 << DS3231_ALARM1_A1M3_SHIFT)
# define DS3231_ALARM1_A1M3(n) ((uint8_t)(n) << DS3231_ALARM1_A1M3_SHIFT)
#define DS3231_ALARM2_MINR 0x0b /* Alarm2 minutes register */
# define DS3231_ALARM2_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3231_ALARM2_MIN_MASK (15 << DS3231_ALARM2_MIN_SHIFT)
# define DS3231_ALARM2_MIN(n) ((uint8_t)(n) << DS3231_ALARM2_MIN_SHIFT)
# define DS3231_ALARM2_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3231_ALARM2_10MIN_MASK (7 << DS3231_ALARM2_10MIN_SHIFT)
# define DS3231_ALARM2_10MIN(n) ((uint8_t)(n) << DS3231_ALARM2_10MIN_SHIFT)
# define DS3231_ALARM2_MIN_BCDMASK (DS3231_ALARM2_MIN_MASK | DS3231_ALARM2_10MIN_MASK)
# define DS3231_ALARM2_A2M2_SHIFT 7 /* Bits 7: A2M2 mask */
# define DS3231_ALARM2_A2M2_MASK (1 << DS3231_ALARM2_A2M2_SHIFT)
# define DS3231_ALARM2_A2M2(n) ((uint8_t)(n) << DS3231_ALARM2_A2M2_SHIFT)
# define DS3231_ALARM1_DAYDATER 0x0a /* Alarm1 date / day of the week register */
# define DS3231_ALARM1_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3231_ALARM1_DAY_MASK (7 << DS3231_ALARM1_DAY_SHIFT)
# define DS3231_ALARM1_DAY(n) ((uint8_t)(n) << DS3231_ALARM1_DAY_SHIFT)
# define DS3231_ALARM1_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3231_ALARM1_DATE_MASK (15 << DS3231_ALARM1_DATE_SHIFT)
# define DS3231_ALARM1_DATE(n) ((uint8_t)(n) << DS3231_ALARM1_DATE_SHIFT)
# define DS3231_ALARM1_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3231_ALARM1_10DATE_MASK (3 << DS3231_ALARM1_10DATE_SHIFT)
# define DS3231_ALARM1_10DATE(n) ((uint8_t)(n) << DS3231_ALARM1_10DATE_SHIFT)
# define DS3231_ALARM1_DATE_BCDMASK (DS3231_ALARM1_DATE_MASK | DS3231_ALARM1_10DATE_MASK)
# define DS3231_ALARM1_DYDT_SHIFT 6 /* Bits 6: DY/DT */
# define DS3231_ALARM1_DYDT_MASK (1 << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_DYDT_DATE ((uint8_t)(0) << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_DYDT_DAY ((uint8_t)(1) << DS3231_ALARM1_DYDT_SHIFT)
# define DS3231_ALARM1_A1M4_SHIFT 7 /* Bits 7: A1M4 mask */
# define DS3231_ALARM1_A1M4_MASK (1 << DS3231_ALARM1_A1M4_SHIFT)
# define DS3231_ALARM1_A1M4(n) ((uint8_t)(n) << DS3231_ALARM1_A1M4_SHIFT)
#define DS3231_ALARM2_HOURR 0x0c /* Alarm2 hours register */
# define DS3231_ALARM2_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3231_ALARM2_HOUR_MASK (15 << DS3231_ALARM2_HOUR_SHIFT)
# define DS3231_ALARM2_HOUR(n) ((uint8_t)(n) << DS3231_ALARM2_HOUR_SHIFT)
# define DS3231_ALARM2_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3231_ALARM2_10HOUR12_MASK (1 << DS3231_ALARM2_10HOUR12_SHIFT)
# define DS3231_ALARM2_10HOUR12(n) ((uint8_t)(n) << DS3231_ALARM2_10HOUR12_SHIFT)
# define DS3231_ALARM2_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3231_ALARM2_10HOUR24_MASK (3 << DS3231_ALARM2_10HOUR24_SHIFT)
# define DS3231_ALARM2_10HOUR24(n) ((uint8_t)(n) << DS3231_ALARM2_10HOUR24_SHIFT)
# define DS3231_ALARM2_HOUR12_BCDMASK (DS3231_ALARM2_HOUR_MASK | DS3231_ALARM2_10HOUR12_MASK)
# define DS3231_ALARM2_HOUR24_BCDMASK (DS3231_ALARM2_HOUR_MASK | DS3231_ALARM2_10HOUR24_MASK)
# define DS3231_ALARM2_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3231_ALARM2_AMPM_MASK (1 << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_AM ((uint8_t)(0) << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_PM ((uint8_t)(1) << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3231_ALARM2_1224_MASK (1 << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_12 ((uint8_t)(0) << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_24 ((uint8_t)(1) << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_A2M3_SHIFT 7 /* Bits 7: A2M3 mask */
# define DS3231_ALARM2_A2M3_MASK (1 << DS3231_ALARM2_A2M3_SHIFT)
# define DS3231_ALARM2_A2M3(n) ((uint8_t)(n) << DS3231_ALARM2_A2M3_SHIFT)
# define DS3231_ALARM2_MINR 0x0b /* Alarm2 minutes register */
# define DS3231_ALARM2_MIN_SHIFT 0 /* Bits 0-3: Minutes, range 0-9 */
# define DS3231_ALARM2_MIN_MASK (15 << DS3231_ALARM2_MIN_SHIFT)
# define DS3231_ALARM2_MIN(n) ((uint8_t)(n) << DS3231_ALARM2_MIN_SHIFT)
# define DS3231_ALARM2_10MIN_SHIFT 4 /* Bits 4-6: 10 minutes, range 0-5 */
# define DS3231_ALARM2_10MIN_MASK (7 << DS3231_ALARM2_10MIN_SHIFT)
# define DS3231_ALARM2_10MIN(n) ((uint8_t)(n) << DS3231_ALARM2_10MIN_SHIFT)
# define DS3231_ALARM2_MIN_BCDMASK (DS3231_ALARM2_MIN_MASK | DS3231_ALARM2_10MIN_MASK)
# define DS3231_ALARM2_A2M2_SHIFT 7 /* Bits 7: A2M2 mask */
# define DS3231_ALARM2_A2M2_MASK (1 << DS3231_ALARM2_A2M2_SHIFT)
# define DS3231_ALARM2_A2M2(n) ((uint8_t)(n) << DS3231_ALARM2_A2M2_SHIFT)
#define DS3231_ALARM2_DAYDATER 0x0d /* Alarm2 date / day of the week register */
# define DS3231_ALARM2_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3231_ALARM2_DAY_MASK (7 << DS3231_ALARM2_DAY_SHIFT)
# define DS3231_ALARM2_DAY(n) ((uint8_t)(n) << DS3231_ALARM2_DAY_SHIFT)
# define DS3231_ALARM2_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3231_ALARM2_DATE_MASK (15 << DS3231_ALARM2_DATE_SHIFT)
# define DS3231_ALARM2_DATE(n) ((uint8_t)(n) << DS3231_ALARM2_DATE_SHIFT)
# define DS3231_ALARM2_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3231_ALARM2_10DATE_MASK (3 << DS3231_ALARM2_10DATE_SHIFT)
# define DS3231_ALARM2_10DATE(n) ((uint8_t)(n) << DS3231_ALARM2_10DATE_SHIFT)
# define DS3231_ALARM2_DATE_BCDMASK (DS3231_ALARM2_DATE_MASK | DS3231_ALARM2_10DATE_MASK)
# define DS3231_ALARM2_DYDT_SHIFT 6 /* Bits 6: DY/DT */
# define DS3231_ALARM2_DYDT_MASK (1 << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_DYDT_DATE ((uint8_t)(0) << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_DYDT_DAY ((uint8_t)(1) << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_A2M4_SHIFT 7 /* Bits 7: A2M4 mask */
# define DS3231_ALARM2_A2M4_MASK (1 << DS3231_ALARM2_A2M4_SHIFT)
# define DS3231_ALARM2_A2M4(n) ((uint8_t)(n) << DS3231_ALARM2_A2M4_SHIFT)
# define DS3231_ALARM2_HOURR 0x0c /* Alarm2 hours register */
# define DS3231_ALARM2_HOUR_SHIFT 0 /* Bits 0-3: Hours, range 0-9 */
# define DS3231_ALARM2_HOUR_MASK (15 << DS3231_ALARM2_HOUR_SHIFT)
# define DS3231_ALARM2_HOUR(n) ((uint8_t)(n) << DS3231_ALARM2_HOUR_SHIFT)
# define DS3231_ALARM2_10HOUR12_SHIFT 4 /* Bit 4: 10 hours, range 0-1 */
# define DS3231_ALARM2_10HOUR12_MASK (1 << DS3231_ALARM2_10HOUR12_SHIFT)
# define DS3231_ALARM2_10HOUR12(n) ((uint8_t)(n) << DS3231_ALARM2_10HOUR12_SHIFT)
# define DS3231_ALARM2_10HOUR24_SHIFT 4 /* Bits 4-5: 10 hours, range 0-2 */
# define DS3231_ALARM2_10HOUR24_MASK (3 << DS3231_ALARM2_10HOUR24_SHIFT)
# define DS3231_ALARM2_10HOUR24(n) ((uint8_t)(n) << DS3231_ALARM2_10HOUR24_SHIFT)
# define DS3231_ALARM2_HOUR12_BCDMASK (DS3231_ALARM2_HOUR_MASK | DS3231_ALARM2_10HOUR12_MASK)
# define DS3231_ALARM2_HOUR24_BCDMASK (DS3231_ALARM2_HOUR_MASK | DS3231_ALARM2_10HOUR24_MASK)
# define DS3231_ALARM2_AMPM_SHIFT 5 /* Bit 5: AM/PM Indication */
# define DS3231_ALARM2_AMPM_MASK (1 << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_AM ((uint8_t)(0) << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_PM ((uint8_t)(1) << DS3231_ALARM2_AMPM_SHIFT)
# define DS3231_ALARM2_1224_SHIFT 6 /* Bit 6: 12/24 Indication */
# define DS3231_ALARM2_1224_MASK (1 << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_12 ((uint8_t)(0) << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_24 ((uint8_t)(1) << DS3231_ALARM2_1224_SHIFT)
# define DS3231_ALARM2_A2M3_SHIFT 7 /* Bits 7: A2M3 mask */
# define DS3231_ALARM2_A2M3_MASK (1 << DS3231_ALARM2_A2M3_SHIFT)
# define DS3231_ALARM2_A2M3(n) ((uint8_t)(n) << DS3231_ALARM2_A2M3_SHIFT)
#define DS3231_CR 0x0e /* Control register */
# define DS3231_CR_A1IE (1 << 0) /* Bit 0: Alarm 1 interrupt enable */
# define DS3231_CR_A2IE (1 << 1) /* Bit 1: Alarm 2 interrupt enable */
# define DS3231_CR_INTCN (1 << 2) /* Bit 2: Interrupt control */
# define DS3231_CR_RS_SHIFT (3) /* Bit 3-4: Rate selection */
# define DS3231_CR_RS_MASK (3 << DS3231_CR_RS_SHIFT)
# define DS3231_CR_RS_1HZ (0 << DS3231_CR_RS_SHIFT) /* 1Hz */
# define DS3231_CR_RS_1KHZ (1 << DS3231_CR_RS_SHIFT) /* 1.024kHz */
# define DS3231_CR_RS_4KHZ (2 << DS3231_CR_RS_SHIFT) /* 4.096kHz */
# define DS3231_CR_RS_8KHZ (3 << DS3231_CR_RS_SHIFT) /* 8.192kHz */
# define DS3231_CR_CONV (1 << 5) /* Bit 5: Convert temperature */
# define DS3231_CR_BBSQW (1 << 6) /* Bit 6: Battery backed square wave enable */
# define DS3231_CR_EOSC (1 << 7) /* Bit 7: Enable oscillator */
# define DS3231_ALARM2_DAYDATER 0x0d /* Alarm2 date / day of the week register */
# define DS3231_ALARM2_DAY_SHIFT 0 /* Bits 0-3: Day of the week, range 1-7 */
# define DS3231_ALARM2_DAY_MASK (7 << DS3231_ALARM2_DAY_SHIFT)
# define DS3231_ALARM2_DAY(n) ((uint8_t)(n) << DS3231_ALARM2_DAY_SHIFT)
# define DS3231_ALARM2_DATE_SHIFT 0 /* Bits 0-3: Days, range 0-9 */
# define DS3231_ALARM2_DATE_MASK (15 << DS3231_ALARM2_DATE_SHIFT)
# define DS3231_ALARM2_DATE(n) ((uint8_t)(n) << DS3231_ALARM2_DATE_SHIFT)
# define DS3231_ALARM2_10DATE_SHIFT 4 /* Bits 4-5: 10 days, range 0-5 */
# define DS3231_ALARM2_10DATE_MASK (3 << DS3231_ALARM2_10DATE_SHIFT)
# define DS3231_ALARM2_10DATE(n) ((uint8_t)(n) << DS3231_ALARM2_10DATE_SHIFT)
# define DS3231_ALARM2_DATE_BCDMASK (DS3231_ALARM2_DATE_MASK | DS3231_ALARM2_10DATE_MASK)
# define DS3231_ALARM2_DYDT_SHIFT 6 /* Bits 6: DY/DT */
# define DS3231_ALARM2_DYDT_MASK (1 << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_DYDT_DATE ((uint8_t)(0) << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_DYDT_DAY ((uint8_t)(1) << DS3231_ALARM2_DYDT_SHIFT)
# define DS3231_ALARM2_A2M4_SHIFT 7 /* Bits 7: A2M4 mask */
# define DS3231_ALARM2_A2M4_MASK (1 << DS3231_ALARM2_A2M4_SHIFT)
# define DS3231_ALARM2_A2M4(n) ((uint8_t)(n) << DS3231_ALARM2_A2M4_SHIFT)
#define DS3231_CSR 0x0f /* Control/status register */
# define DS3231_CSR_A1F (1 << 0) /* Bit 0: Alarm 1 flag */
# define DS3231_CSR_A2F (1 << 1) /* Bit 1: Alarm 2 flag */
# define DS3231_CSR_BSY (1 << 2) /* Bit 2: Busy */
# define DS3231_CSR_EN32kHz (1 << 3) /* Bit 3: Enable 32kHz output */
# define DS3231_CSR_OSF (1 << 7) /* Bit 7: Oscillator stop flag */
# define DS3231_CR 0x0e /* Control register */
# define DS3231_CR_A1IE (1 << 0) /* Bit 0: Alarm 1 interrupt enable */
# define DS3231_CR_A2IE (1 << 1) /* Bit 1: Alarm 2 interrupt enable */
# define DS3231_CR_INTCN (1 << 2) /* Bit 2: Interrupt control */
# define DS3231_CR_RS_SHIFT (3) /* Bits 3-4: Rate selection */
# define DS3231_CR_RS_MASK (3 << DS3231_CR_RS_SHIFT)
# define DS3231_CR_RS_1HZ (0 << DS3231_CR_RS_SHIFT) /* 1Hz */
# define DS3231_CR_RS_1KHZ (1 << DS3231_CR_RS_SHIFT) /* 1.024kHz */
# define DS3231_CR_RS_4KHZ (2 << DS3231_CR_RS_SHIFT) /* 4.096kHz */
# define DS3231_CR_RS_8KHZ (3 << DS3231_CR_RS_SHIFT) /* 8.192kHz */
# define DS3231_CR_CONV (1 << 5) /* Bit 5: Convert temperature */
# define DS3231_CR_BBSQW (1 << 6) /* Bit 6: Battery backed square wave enable */
# define DS3231_CR_EOSC (1 << 7) /* Bit 7: Enable oscillator */
#define DS3231_AGINGR 0x10 /* Aging offset register (8-bit, 2's complement) */
# define DS3231_CSR 0x0f /* Control/status register */
# define DS3231_CSR_A1F (1 << 0) /* Bit 0: Alarm 1 flag */
# define DS3231_CSR_A2F (1 << 1) /* Bit 1: Alarm 2 flag */
# define DS3231_CSR_BSY (1 << 2) /* Bit 2: Busy */
# define DS3231_CSR_EN32kHz (1 << 3) /* Bit 3: Enable 32kHz output */
# define DS3231_CSR_OSF (1 << 7) /* Bit 7: Oscillator stop flag */
#define DS3231_TMPMR 0x11 /* MSB of temp register (8-bit, 2's complement) */
# define DS3231_AGINGR 0x10 /* Aging offset register (8-bit, 2's complement) */
#define DS3231_TMPLR 0x12 /* LSB of temp register (2-bits) */
# define DS3231_TMPLR_MASK 0xc0 /* Bits 6-7: LSB of temp register (2-bits) */
# define DS3231_TMPMR 0x11 /* MSB of temp register (8-bit, 2's complement) */
# define DS3231_TMPLR 0x12 /* LSB of temp register (2-bits) */
# define DS3231_TMPLR_MASK 0xc0 /* Bits 6-7: LSB of temp register (2-bits) */
#endif
#endif /* __DRIVERS_TIMERS_DS3231_H */
include/nuttx/timers/ds3231.h
+5 -5
View File
@@ -42,7 +42,7 @@
#include <nuttx/config.h>
#ifdef CONFIG_RTC_DS3231
#ifdef CONFIG_RTC_DS3XXX
/****************************************************************************
* Public Function Prototypes
@@ -57,13 +57,13 @@ extern "C"
#endif
/************************************************************************************
* Name: ds3231_rtc_initialize
* Name: ds3xxx_rtc_initialize
*
* Description:
* Initialize the hardware RTC per the selected configuration. This function is
* called once during the OS initialization sequence by board-specific logic.
*
* After ds3231_rtc_initialize() is called, the OS function clock_synchronize()
* After ds3xxx_rtc_initialize() is called, the OS function clock_synchronize()
* should also be called to synchronize the system timer to a hardware RTC. That
* operation is normally performed automatically by the system during clock
* initialization. However, when an external RTC is used, the board logic will
@@ -79,12 +79,12 @@ extern "C"
************************************************************************************/
struct i2c_dev_s; /* Forward reference */
int ds3231_rtc_initialize(FAR struct i2c_dev_s *i2c);
int ds3xxx_rtc_initialize(FAR struct i2c_dev_s *i2c);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* CONFIG_RTC_DS3231 */
#endif /* CONFIG_RTC_DS3XXX */
#endif /* __INCLUDE_NUTTX_TIMERS_DS3231_H */