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Added tamper functions 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11893 110e8d01-0319-4d1e-a829-52ad28d1bb01
This commit is contained in:
edolomb 2018-04-11 16:46:41 +00:00
parent d09f988ca5
commit c5efa3af6f
2 changed files with 89 additions and 2 deletions
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86
os/hal/ports/SAMA/LLD/RTCv1/hal_rtc_lld.c
View File

@ -337,6 +337,8 @@ void rtc_lld_init(void) {
/* Disable write protection */
// syscDisableWP();
RTCD0.rtc->RTC_IDR = RTC_IDR_ALRDIS | RTC_IDR_SECDIS;
/* Clear all status flag.*/
RTCD0.rtc->RTC_SCCR = 0x3F;
@ -373,6 +375,7 @@ void rtc_lld_set_time(RTCDriver *rtcp, const RTCDateTime *timespec) {
timr = rtc_encode_time(timespec);
calr = rtc_encode_date(timespec);
ver = rtcp->rtc->RTC_VER;
/* Disable write protection */
// syscDisableWP();
@ -444,6 +447,85 @@ void rtc_lld_get_time(RTCDriver *rtcp, RTCDateTime *timespec) {
timespec->dstflag = 0;
}
/**
* @brief Get tamper time.
* @note The function can be called from any context.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] reg number of register to return
* @param[out] timespec pointer to a @p RTCDateTime structure
*
* @note RTC_TSSR0 and RTC_TSDR cannot be overwritten, so once it has been written
* all data are stored until the registers are reset: these register are
* storing the first tamper occurrence after a read.
* RTC_TSSR0 and RTC_TSDR are overwritten each time a tamper event is detected.
*
*/
void rtcGetTamperTime(RTCDriver *rtcp, uint8_t reg, RTCDateTime *timespec) {
uint32_t calr, timr;
uint32_t subs = 0;
timr = rtcp->rtc->RTC_TS[reg].RTC_TSTR;
calr = rtcp->rtc->RTC_TS[reg].RTC_TSDR;
rtc_decode_time(timr, timespec);
timespec->millisecond += subs;
/* Decoding date, this concludes the atomic read sequence.*/
rtc_decode_date(calr, timespec);
/* Retrieving the DST bit.*/
timespec->dstflag = 0;
}
/**
* @brief Returns source of tamper register.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] reg number of register source to return
*
* return content of RTC_SSRx register
*
* @note RTC_TSSR0 cannot be overwritten, so once it has been written
* all data are stored until the registers are reset: that register is
* storing the first tamper occurrence after a read.
* RTC_TSSR1 is overwritten each time a tamper event is detected.
*
*/
uint32_t rtcGetTamperSource(RTCDriver *rtcp, uint8_t reg) {
return ((rtcp)->rtc->RTC_TS[reg].RTC_TSSR);
}
/**
* @brief Returns numbers of total tamper events.
*
* @param[in] rtcp pointer to RTC driver structure
*
* return numbers of total tamper events.
*/
uint32_t rtcGetTamperEventCounter(RTCDriver *rtcp) {
return ((rtcp)->rtc->RTC_TS[0].RTC_TSTR & RTC_TSTR_TEVCNT_Msk) >> RTC_TSTR_TEVCNT_Pos;
}
/**
* @brief Returns backup or normal mode of tamper event.
*
* @param[in] rtcp pointer to RTC driver structure
* @param[in] reg number of register source to return
*
* @return 0x1 if system is in backup mode when tamper events occurs
* 0x0 if system is not in backup mode when tamper events occurs
*
* @note RTC_TSTR0 cannot be overwritten, so once it has been written
* all data are stored until the registers are reset: that register is
* storing the first tamper occurrence after a read.
* RTC_TSTR1 is overwritten each time a tamper event is detected.
*
*/
uint8_t rtcGetTamperMode(RTCDriver *rtcp, uint8_t reg) {
return (rtcp)->rtc->RTC_TS[reg].RTC_TSTR & RTC_TSTR_BACKUP ? 0x1u : 0x0u;
}
/**
* @brief Set alarm time.
* @note The function can be called from any context.
@ -535,8 +617,8 @@ void rtc_lld_set_callback(RTCDriver *rtcp, rtccb_t callback) {
/* IRQ sources enabled only after setting up the callback.*/
rtcp->callback = callback;
rtcp->rtc->RTC_SCCR &= ~(RTC_SCCR_ALRCLR | RTC_SCCR_SECCLR | RTC_SCCR_TIMCLR |
RTC_SCCR_CALCLR | RTC_SCCR_TDERRCLR);
rtcp->rtc->RTC_SCCR = RTC_SCCR_ALRCLR | RTC_SCCR_SECCLR | RTC_SCCR_TIMCLR |
RTC_SCCR_CALCLR | RTC_SCCR_TDERRCLR;
rtcp->rtc->RTC_IER = RTC_IER_ALREN | RTC_IER_SECEN;
}
else {

5
os/hal/ports/SAMA/LLD/RTCv1/hal_rtc_lld.h
View File

@ -202,6 +202,11 @@ extern "C" {
rtcalarm_t alarm,
RTCAlarm *alarmspec);
void rtc_lld_set_callback(RTCDriver *rtcp, rtccb_t callback);
/* Driver specific */
void rtcGetTamperTime(RTCDriver *rtcp, uint8_t reg, RTCDateTime *timespec);
uint32_t rtcGetTamperSource(RTCDriver *rtcp, uint8_t reg);
uint32_t rtcGetTamperEventCounter(RTCDriver *rtcp);
uint8_t rtcGetTamperMode(RTCDriver *rtcp, uint8_t reg);
#ifdef __cplusplus
}
#endif