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Changes for RTC peripheral status

pull/11023/head
Ganesh Ramachandran 2019-07-03 17:57:49 +05:30 committed by Evelyne Donnaes
parent 764f9ffbcf
commit e74f84fddb
1 changed files with 16 additions and 8 deletions
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24
targets/TARGET_TOSHIBA/TARGET_TMPM4G9/rtc_api.c
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@ -34,15 +34,15 @@
#define HEX2DEC(val) ((val >> 4U) * 10U + val % 16U) // Hex to Dec conversion macro #define HEX2DEC(val) ((val >> 4U) * 10U + val % 16U) // Hex to Dec conversion macro
#define DEC2HEX(val) ((val / 10U) * 16U + val % 10U) // Dec to Hex conversion macro #define DEC2HEX(val) ((val / 10U) * 16U + val % 10U) // Dec to Hex conversion macro
static int flag = 0; static int rtc_inited = 0;
static int diff_year = 100; //our RTC register only support 2000~2099 static int diff_year = 100; //our RTC register only support 2000~2099
static void external_losc_enable(void); static void external_losc_enable(void);
void rtc_init(void) void rtc_init(void)
{ {
if (!flag) { if (!rtc_inited) {
external_losc_enable(); // Enable low-speed oscillator external_losc_enable(); // Enable low-speed oscillator
TSB_RTC->PAGER = 0x00; //disable clock and alarm TSB_RTC->PAGER = 0x00; // Disable clock and alarm
while ((TSB_RTC->RESTR & RTCRESTR_RSTTMR_MASK) == RTCRESTR_RSTTMR_R_RUN) { while ((TSB_RTC->RESTR & RTCRESTR_RSTTMR_MASK) == RTCRESTR_RSTTMR_R_RUN) {
// Reset RTC sec counter // Reset RTC sec counter
} }
@ -64,24 +64,27 @@ void rtc_init(void)
TSB_RTC->MINR = (uint8_t)0x02; // Set minute value TSB_RTC->MINR = (uint8_t)0x02; // Set minute value
TSB_RTC->SECR = (uint8_t)0x22; // Set second value TSB_RTC->SECR = (uint8_t)0x22; // Set second value
TSB_RTC->PAGER |= RTC_CLK_ENABLE; // Enable Clock TSB_RTC->PAGER |= RTC_CLK_ENABLE; // Enable Clock
flag = 1; // Enable internal flag rtc_inited = 1; // Enable RTC initialzed status
} }
} }
void rtc_free(void) void rtc_free(void)
{ {
if (flag) { // Check status of RTC peripheral driver is ENABLE or DISABLE rtc_inited = 0; // Set status of RTC peripheral driver as DISABLE
flag = 0; // Set status of RTC peripheral driver is DISABLE
}
} }
int rtc_isenabled(void) int rtc_isenabled(void)
{ {
return flag; // Return a flag that represents status of RTC peripheral driver return rtc_inited; // Return status of RTC peripheral driver
} }
time_t rtc_read(void) time_t rtc_read(void)
{ {
if (!rtc_inited) {
// Return invalid time for now!
return 0;
}
struct tm timeinfo; struct tm timeinfo;
uint8_t read_1 = 0U; uint8_t read_1 = 0U;
uint8_t read_2 = 0U; uint8_t read_2 = 0U;
@ -144,6 +147,11 @@ time_t rtc_read(void)
void rtc_write(time_t t) void rtc_write(time_t t)
{ {
if (!rtc_inited) {
// Initialize the RTC as not yet initialized
rtc_init();
}
struct tm timeinfo; struct tm timeinfo;
if (_rtc_localtime(t, &timeinfo, RTC_4_YEAR_LEAP_YEAR_SUPPORT) == false) { if (_rtc_localtime(t, &timeinfo, RTC_4_YEAR_LEAP_YEAR_SUPPORT) == false) {
return; return;