refactor: decouple i386 specific instruction invocation

[lunaix-os.git] / lunaix-os / hal / rtc.c

diff --git a/lunaix-os/hal/rtc.c b/lunaix-os/hal/rtc.c
index 60a1aed86654652bb225e655fdd46669aa439719..bc2c2ef497ab2e7e33a01a179c3b427a7ef08515 100644 (file)
--- a/lunaix-os/hal/rtc.c
+++ b/lunaix-os/hal/rtc.c
@@ -13,7 +13,7 @@
 
 void
 rtc_init() {
-    uint8_t regA = rtc_read_reg(RTC_REG_A | WITH_NMI_DISABLED);
+    u8_t regA = rtc_read_reg(RTC_REG_A | WITH_NMI_DISABLED);
     regA = (regA & ~0x7f) | RTC_FREQUENCY_1024HZ | RTC_DIVIDER_33KHZ;
     rtc_write_reg(RTC_REG_A | WITH_NMI_DISABLED, regA);
 
@@ -21,84 +21,35 @@ rtc_init() {
     rtc_disable_timer();
 }
 
-uint8_t
-rtc_read_reg(uint8_t reg_selector)
+u8_t
+rtc_read_reg(u8_t reg_selector)
 {
     io_outb(RTC_INDEX_PORT, reg_selector);
     return io_inb(RTC_TARGET_PORT);
 }
 
 void
-rtc_write_reg(uint8_t reg_selector, uint8_t val)
+rtc_write_reg(u8_t reg_selector, u8_t val)
 {
     io_outb(RTC_INDEX_PORT, reg_selector);
     io_outb(RTC_TARGET_PORT, val);
 }
 
-uint8_t
-bcd2dec(uint8_t bcd)
+u8_t
+bcd2dec(u8_t bcd)
 {
     return ((bcd & 0xF0) >> 1) + ((bcd & 0xF0) >> 3) + (bcd & 0xf);
 }
 
-int
-rtc_date_same(rtc_datetime* a, rtc_datetime* b) {
-    return a->year == b->year &&
-           a->month == b->month &&
-           a->day == b->day &&
-           a->weekday == b->weekday &&
-           a->minute == b->minute &&
-           a->second == b->second;
-}
-
-void
-rtc_get_datetime(rtc_datetime* datetime)
-{
-    rtc_datetime current;
-    
-    do
-    {
-        while (rtc_read_reg(RTC_REG_A) & 0x80);
-        memcpy(&current, datetime, sizeof(rtc_datetime));
-
-        datetime->year = rtc_read_reg(RTC_REG_YRS);
-        datetime->month = rtc_read_reg(RTC_REG_MTH);
-        datetime->day = rtc_read_reg(RTC_REG_DAY);
-        datetime->weekday = rtc_read_reg(RTC_REG_WDY);
-        datetime->hour = rtc_read_reg(RTC_REG_HRS);
-        datetime->minute = rtc_read_reg(RTC_REG_MIN);
-        datetime->second = rtc_read_reg(RTC_REG_SEC);
-    } while (!rtc_date_same(datetime, &current));
-
-    uint8_t regbv = rtc_read_reg(RTC_REG_B);
-
-    // Convert from bcd to binary when needed
-    if (!RTC_BIN_ENCODED(regbv)) {
-        datetime->year = bcd2dec(datetime->year);
-        datetime->month = bcd2dec(datetime->month);
-        datetime->day = bcd2dec(datetime->day);
-        datetime->hour = bcd2dec(datetime->hour);
-        datetime->minute = bcd2dec(datetime->minute);
-        datetime->second = bcd2dec(datetime->second);
-    }
-
-
-    // To 24 hour format
-    if (!RTC_24HRS_ENCODED(regbv) && (datetime->hour >> 7)) {
-        datetime->hour = (12 + datetime->hour & 0x80);
-    }
-
-    datetime->year += RTC_CURRENT_CENTRY * 100;
-}
 
 void
 rtc_enable_timer() {
-    uint8_t regB = rtc_read_reg(RTC_REG_B | WITH_NMI_DISABLED);
+    u8_t regB = rtc_read_reg(RTC_REG_B | WITH_NMI_DISABLED);
     rtc_write_reg(RTC_REG_B | WITH_NMI_DISABLED, regB | RTC_TIMER_ON);
 }
 
 void
 rtc_disable_timer() {
-    uint8_t regB = rtc_read_reg(RTC_REG_B | WITH_NMI_DISABLED);
+    u8_t regB = rtc_read_reg(RTC_REG_B | WITH_NMI_DISABLED);
     rtc_write_reg(RTC_REG_B | WITH_NMI_DISABLED, regB & ~RTC_TIMER_ON);
 }
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