STM32 F4 RTC: Fix some long lines
This commit is contained in:
Gregory Nutt
parent
2ed1295528
commit
c40c107e7a
@ -1,4 +1,4 @@
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/************************************************************************************
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/****************************************************************************
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* arch/arm/src/stm32/stm32f40xxx_rtcc.c
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*
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* Copyright (C) 2012-2016 Gregory Nutt. All rights reserved.
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@ -32,11 +32,11 @@
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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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****************************************************************************/
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/************************************************************************************
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/****************************************************************************
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* Included Files
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************************************************************************************/
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****************************************************************************/
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#include <nuttx/config.h>
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@ -60,10 +60,11 @@
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#ifdef CONFIG_RTC
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/************************************************************************************
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/****************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Configuration ********************************************************************/
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****************************************************************************/
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/* Configuration ************************************************************/
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/* This RTC implementation supports
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* - date/time RTC hardware
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* - extended functions Alarm A and B for STM32F4xx and onwards
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@ -81,12 +82,12 @@
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# error "CONFIG_STM32_PWR must selected to use this driver"
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#endif
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/* Constants ************************************************************************/
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/* Constants ****************************************************************/
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#define SYNCHRO_TIMEOUT (0x00020000)
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#define INITMODE_TIMEOUT (0x00010000)
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/* Proxy definitions to make the same code work for all the STM32 series ************/
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/* Proxy definitions to make the same code work for all the STM32 series ****/
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# define STM32_RCC_XXX STM32_RCC_BDCR
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# define RCC_XXX_YYYRST RCC_BDCR_BDRST
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@ -101,10 +102,6 @@
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#define MINUTES_IN_HOUR 60
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#define HOURS_IN_DAY 24
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/* Can't exceed 24hours-2min without providing extra logic for carry over for day. */
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#define MAX_RTC_ALARM_REL_MINUTES (24*MINUTES_IN_HOUR)-2
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#define hours_add(parm_hrs) \
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time->tm_hour += parm_hrs;\
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if ((HOURS_IN_DAY-1) < (time->tm_hour))\
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@ -117,9 +114,9 @@
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#define RTC_ALRMR_DIS_DATE_MASK (RTC_ALRMR_MSK4)
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#define RTC_ALRMR_ENABLE (0)
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/************************************************************************************
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/****************************************************************************
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* Private Types
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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typedef unsigned int rtc_alarmreg_t;
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@ -131,9 +128,9 @@ struct alm_cbinfo_s
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};
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#endif
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/************************************************************************************
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/****************************************************************************
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* Private Data
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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/* Callback to use when an EXTI is activated */
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@ -141,17 +138,17 @@ struct alm_cbinfo_s
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static struct alm_cbinfo_s g_alarmcb[RTC_ALARM_LAST];
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#endif
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/************************************************************************************
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/****************************************************************************
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* Public Data
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************************************************************************************/
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****************************************************************************/
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/* g_rtc_enabled is set true after the RTC has successfully initialized */
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volatile bool g_rtc_enabled = false;
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/************************************************************************************
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/****************************************************************************
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* Private Function Prototypes
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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static int rtchw_check_alrawf(void);
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@ -162,11 +159,11 @@ static int rtchw_set_alrmbr(rtc_alarmreg_t alarmreg);
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#endif
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#endif
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/************************************************************************************
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/****************************************************************************
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* Private Functions
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************************************************************************************/
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****************************************************************************/
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_dumpregs
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*
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* Description:
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@ -178,7 +175,7 @@ static int rtchw_set_alrmbr(rtc_alarmreg_t alarmreg);
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* Returned Value:
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* None
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*
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_DEBUG_RTC_INFO
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static void rtc_dumpregs(FAR const char *msg)
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@ -215,7 +212,7 @@ static void rtc_dumpregs(FAR const char *msg)
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# define rtc_dumpregs(msg)
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#endif
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_dumptime
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*
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* Description:
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@ -227,7 +224,7 @@ static void rtc_dumpregs(FAR const char *msg)
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* Returned Value:
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* None
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*
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_DEBUG_RTC_INFO
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static void rtc_dumptime(FAR const struct tm *tp, FAR const char *msg)
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@ -244,7 +241,7 @@ static void rtc_dumptime(FAR const struct tm *tp, FAR const char *msg)
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# define rtc_dumptime(tp, msg)
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#endif
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_wprunlock
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*
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* Description:
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@ -256,7 +253,7 @@ static void rtc_dumptime(FAR const struct tm *tp, FAR const char *msg)
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* Returned Value:
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* None
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*
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************************************************************************************/
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****************************************************************************/
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static void rtc_wprunlock(void)
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{
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@ -279,7 +276,7 @@ static void rtc_wprunlock(void)
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putreg32(0x53, STM32_RTC_WPR);
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_wprlock
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*
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* Description:
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@ -291,7 +288,7 @@ static void rtc_wprunlock(void)
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* Returned Value:
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* None
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*
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************************************************************************************/
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****************************************************************************/
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static inline void rtc_wprlock(void)
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{
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@ -299,14 +296,14 @@ static inline void rtc_wprlock(void)
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putreg32(0xff, STM32_RTC_WPR);
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/* Disable write access to the backup domain (RTC registers, RTC backup data
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* registers and backup SRAM).
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/* Disable write access to the backup domain (RTC registers, RTC backup
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* data registers and backup SRAM).
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*/
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(void)stm32_pwr_enablebkp(false);
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_synchwait
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*
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* Description:
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@ -319,7 +316,7 @@ static inline void rtc_wprlock(void)
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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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****************************************************************************/
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static int rtc_synchwait(void)
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{
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@ -358,7 +355,7 @@ static int rtc_synchwait(void)
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return ret;
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_enterinit
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*
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* Description:
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@ -370,7 +367,7 @@ static int rtc_synchwait(void)
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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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****************************************************************************/
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static int rtc_enterinit(void)
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{
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@ -406,7 +403,7 @@ static int rtc_enterinit(void)
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return ret;
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_exitinit
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*
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* Description:
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@ -418,7 +415,7 @@ static int rtc_enterinit(void)
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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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****************************************************************************/
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static void rtc_exitinit(void)
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{
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@ -429,7 +426,7 @@ static void rtc_exitinit(void)
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putreg32(regval, STM32_RTC_ISR);
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_bin2bcd
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*
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* Description:
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@ -441,7 +438,7 @@ static void rtc_exitinit(void)
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* Returned Value:
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* The value in BCD representation
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*
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************************************************************************************/
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****************************************************************************/
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static uint32_t rtc_bin2bcd(int value)
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{
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@ -456,7 +453,7 @@ static uint32_t rtc_bin2bcd(int value)
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return (msbcd << 4) | value;
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_bin2bcd
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*
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* Description:
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@ -468,7 +465,7 @@ static uint32_t rtc_bin2bcd(int value)
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* Returned Value:
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* The value in binary representation
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*
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************************************************************************************/
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****************************************************************************/
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static int rtc_bcd2bin(uint32_t value)
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{
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@ -476,13 +473,13 @@ static int rtc_bcd2bin(uint32_t value)
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return (int)(tens + (value & 0x0f));
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_setup
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*
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* Description:
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* Performs first time configuration of the RTC. A special value written into
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* back-up register 0 will prevent this function from being called on sub-sequent
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* resets or power up.
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* Performs first time configuration of the RTC. A special value written
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* into back-up register 0 will prevent this function from being called on
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* sub-sequent resets or power up.
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*
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* Input Parameters:
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* None
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@ -490,7 +487,7 @@ static int rtc_bcd2bin(uint32_t value)
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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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****************************************************************************/
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static int rtc_setup(void)
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{
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@ -544,12 +541,12 @@ static int rtc_setup(void)
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return ret;
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}
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/************************************************************************************
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/****************************************************************************
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* Name: rtc_resume
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*
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* Description:
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* Called when the RTC was already initialized on a previous power cycle. This
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* just brings the RTC back into full operation.
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* Called when the RTC was already initialized on a previous power cycle.
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* This just brings the RTC back into full operation.
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*
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* Input Parameters:
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* None
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@ -557,7 +554,7 @@ static int rtc_setup(void)
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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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****************************************************************************/
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static void rtc_resume(void)
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{
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@ -576,7 +573,7 @@ static void rtc_resume(void)
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#endif
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}
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/************************************************************************************
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/****************************************************************************
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* Name: stm32_rtc_alarm_handler
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*
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* Description:
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@ -589,7 +586,7 @@ static void rtc_resume(void)
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* Returned Value:
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* Zero (OK) on success; A negated errno value on failure.
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*
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************************************************************************************/
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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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static int stm32_rtc_alarm_handler(int irq, void *context)
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@ -659,7 +656,7 @@ static int stm32_rtc_alarm_handler(int irq, void *context)
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}
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#endif
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/************************************************************************************
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/****************************************************************************
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* Name: rtchw_check_alrXwf X= a or B
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*
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* Description:
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@ -671,7 +668,7 @@ static int stm32_rtc_alarm_handler(int irq, void *context)
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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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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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static int rtchw_check_alrawf(void)
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@ -725,12 +722,12 @@ static int rtchw_check_alrbwf(void)
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}
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#endif
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/************************************************************************************
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/****************************************************************************
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* Name: stm32_rtchw_set_alrmXr X is a or b
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*
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* Description:
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* Set the alarm (A or B) hardware registers, using the required hardware access
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* protocol
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* Set the alarm (A or B) hardware registers, using the required hardware
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* access protocol
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*
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* Input Parameters:
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* alarmreg - the register
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@ -738,7 +735,7 @@ static int rtchw_check_alrbwf(void)
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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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****************************************************************************/
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#ifdef CONFIG_RTC_ALARM
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static int rtchw_set_alrmar(rtc_alarmreg_t alarmreg)
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@ -814,16 +811,16 @@ rtchw_set_alrmbr_exit:
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}
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#endif
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/************************************************************************************
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/****************************************************************************
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* Public Functions
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************************************************************************************/
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****************************************************************************/
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/************************************************************************************
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/****************************************************************************
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* Name: up_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
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* Initialize the hardware RTC per the selected configuration. This
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* function is called once during the OS initialization sequence
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*
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* Input Parameters:
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* None
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@ -831,7 +828,7 @@ rtchw_set_alrmbr_exit:
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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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****************************************************************************/
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int up_rtc_initialize(void)
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{
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@ -843,9 +840,9 @@ int up_rtc_initialize(void)
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int nretry = 0;
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/* Clocking for the PWR block must be provided. However, this is done
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* unconditionally in stm32f40xxx_rcc.c on power up. This done unconditionally
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* because the PWR block is also needed to set the internal voltage regulator for
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* maximum performance.
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* unconditionally in stm32f40xxx_rcc.c on power up. This done
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* unconditionally because the PWR block is also needed to set the
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* internal voltage regulator for maximum performance.
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*/
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/* Select the clock source */
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@ -857,9 +854,9 @@ int up_rtc_initialize(void)
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if (regval != RTC_MAGIC)
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{
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/* Some boards do not have the external 32khz oscillator installed, for those
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* boards we must fallback to the crummy internal RC clock or the external high
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* rate clock
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/* Some boards do not have the external 32khz oscillator installed,
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* for those boards we must fallback to the crummy internal RC clock
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* or the external high rate clock
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*/
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#ifdef CONFIG_RTC_HSECLOCK
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@ -942,8 +939,8 @@ int up_rtc_initialize(void)
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do
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{
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/* Wait for the RTC Time and Date registers to be synchronized with RTC APB
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* clock.
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/* Wait for the RTC Time and Date registers to be synchronized with RTC
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* APB clock.
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*/
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ret = rtc_synchwait();
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@ -1014,12 +1011,12 @@ int up_rtc_initialize(void)
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}
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#ifdef CONFIG_RTC_ALARM
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/* Configure RTC interrupt to catch alarm interrupts. All RTC interrupts are
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* connected to the EXTI controller. To enable the RTC Alarm interrupt, the
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* following sequence is required:
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/* Configure RTC interrupt to catch alarm interrupts. All RTC interrupts
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* are connected to the EXTI controller. To enable the RTC Alarm
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* interrupt, the following sequence is required:
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*
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* 1. Configure and enable the EXTI Line 17 RTC ALARM in interrupt mode and select the
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* rising edge sensitivity.
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* 1. Configure and enable the EXTI Line 17 RTC ALARM in interrupt mode
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* and select the rising edge sensitivity.
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* For STM32F4xx
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* EXTI line 21 RTC Tamper & Timestamp
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* EXTI line 22 RTC Wakeup
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@ -1037,18 +1034,18 @@ int up_rtc_initialize(void)
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return OK;
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}
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/************************************************************************************
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/****************************************************************************
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* Name: stm32_rtc_getdatetime_with_subseconds
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*
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* Description:
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* Get the current date and time from the date/time RTC. This interface
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* is only supported by the date/time RTC hardware implementation.
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* It is used to replace the system timer. It is only used by the RTOS during
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* initialization to set up the system time when CONFIG_RTC and CONFIG_RTC_DATETIME
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* are selected (and CONFIG_RTC_HIRES is not).
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* It is used to replace the system timer. It is only used by the RTOS
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* during initialization to set up the system time when CONFIG_RTC and
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* CONFIG_RTC_DATETIME are selected (and CONFIG_RTC_HIRES is not).
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*
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* NOTE: Some date/time RTC hardware is capability of sub-second accuracy. That
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* sub-second accuracy is returned through 'nsec'.
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* NOTE: Some date/time RTC hardware is capability of sub-second accuracy.
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* That sub-second accuracy is returned through 'nsec'.
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*
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* Input Parameters:
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* tp - The location to return the high resolution time value.
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@ -1057,7 +1054,7 @@ int up_rtc_initialize(void)
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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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||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_STM32_HAVE_RTC_SUBSECONDS
|
||||
int stm32_rtc_getdatetime_with_subseconds(FAR struct tm *tp, FAR long *nsec)
|
||||
@ -1072,9 +1069,9 @@ int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
uint32_t tr;
|
||||
uint32_t tmp;
|
||||
|
||||
/* Sample the data time registers. There is a race condition here... If we sample
|
||||
* the time just before midnight on December 31, the date could be wrong because
|
||||
* the day rolled over while were sampling.
|
||||
/* Sample the data time registers. There is a race condition here... If
|
||||
* we sample the time just before midnight on December 31, the date could
|
||||
* be wrong because the day rolled over while were sampling.
|
||||
*/
|
||||
|
||||
do
|
||||
@ -1158,20 +1155,20 @@ int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
return OK;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Name: up_rtc_getdatetime
|
||||
*
|
||||
* Description:
|
||||
* Get the current date and time from the date/time RTC. This interface
|
||||
* is only supported by the date/time RTC hardware implementation.
|
||||
* It is used to replace the system timer. It is only used by the RTOS during
|
||||
* initialization to set up the system time when CONFIG_RTC and CONFIG_RTC_DATETIME
|
||||
* are selected (and CONFIG_RTC_HIRES is not).
|
||||
* It is used to replace the system timer. It is only used by the RTOS
|
||||
* during initialization to set up the system time when CONFIG_RTC and
|
||||
* CONFIG_RTC_DATETIME are selected (and CONFIG_RTC_HIRES is not).
|
||||
*
|
||||
* NOTE: Some date/time RTC hardware is capability of sub-second accuracy. That
|
||||
* sub-second accuracy is lost in this interface. However, since the system time
|
||||
* is reinitialized on each power-up/reset, there will be no timing inaccuracy in
|
||||
* the long run.
|
||||
* NOTE: Some date/time RTC hardware is capability of sub-second accuracy.
|
||||
* That sub-second accuracy is lost in this interface. However, since the
|
||||
* system time is reinitialized on each power-up/reset, there will be no
|
||||
* timing inaccuracy in the long run.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - The location to return the high resolution time value.
|
||||
@ -1179,7 +1176,7 @@ int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_STM32_HAVE_RTC_SUBSECONDS
|
||||
int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
@ -1188,13 +1185,13 @@ int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Name: stm32_rtc_setdatetime
|
||||
*
|
||||
* Description:
|
||||
* Set the RTC to the provided time. RTC implementations which provide
|
||||
* up_rtc_getdatetime() (CONFIG_RTC_DATETIME is selected) should provide this
|
||||
* function.
|
||||
* up_rtc_getdatetime() (CONFIG_RTC_DATETIME is selected) should provide
|
||||
* this function.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - the time to use
|
||||
@ -1202,7 +1199,7 @@ int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
int stm32_rtc_setdatetime(FAR const struct tm *tp)
|
||||
{
|
||||
@ -1223,11 +1220,14 @@ int stm32_rtc_setdatetime(FAR const struct tm *tp)
|
||||
(rtc_bin2bcd(tp->tm_min) << RTC_TR_MNU_SHIFT) |
|
||||
(rtc_bin2bcd(tp->tm_hour) << RTC_TR_HU_SHIFT);
|
||||
|
||||
/* Now convert the fields in struct tm format to the RTC date register fields:
|
||||
* Days: 1-31 match in both cases.
|
||||
* Month: STM32 is 1-12, struct tm is 0-11.
|
||||
* Years: STM32 is 00-99, struct tm is years since 1900.
|
||||
* WeekDay: STM32 is 1 = Mon - 7 = Sun
|
||||
/* Now convert the fields in struct tm format to the RTC date register
|
||||
* fields:
|
||||
*
|
||||
* Days: 1-31 match in both cases.
|
||||
* Month: STM32 is 1-12, struct tm is 0-11.
|
||||
* Years: STM32 is 00-99, struct tm is years since 1900.
|
||||
* WeekDay: STM32 is 1 = Mon - 7 = Sun
|
||||
*
|
||||
* Issue: I am not sure what the STM32 years mean. Are these the
|
||||
* years 2000-2099? I'll assume so.
|
||||
*/
|
||||
@ -1270,12 +1270,12 @@ int stm32_rtc_setdatetime(FAR const struct tm *tp)
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
/****************************************************************************
|
||||
* Name: up_rtc_settime
|
||||
*
|
||||
* Description:
|
||||
* Set the RTC to the provided time. All RTC implementations must be able to
|
||||
* set their time based on a standard timespec.
|
||||
* Set the RTC to the provided time. All RTC implementations must be able
|
||||
* to set their time based on a standard timespec.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - the time to use
|
||||
@ -1283,13 +1283,15 @@ int stm32_rtc_setdatetime(FAR const struct tm *tp)
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
****************************************************************************/
|
||||
|
||||
int up_rtc_settime(FAR const struct timespec *tp)
|
||||
{
|
||||
FAR struct tm newtime;
|
||||
|
||||
/* Break out the time values (not that the time is set only to units of seconds) */
|
||||
/* Break out the time values (not that the time is set only to units of
|
||||
* seconds)
|
||||
*/
|
||||
|
||||
(void)gmtime_r(&tp->tv_sec, &newtime);
|
||||
return stm32_rtc_setdatetime(&newtime);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user