refactoring

1 files changed, 29 insertions, 15 deletions

diff --git a/kernel/src/drivers/cmos.c b/kernel/src/arch/i686/drivers/rtc.c
index 5ac12c3..ba69d15 100644
--- a/kernel/src/drivers/cmos.c
+++ b/kernel/src/arch/i686/drivers/rtc.c
@@ -1,7 +1,8 @@
-#include "print.h"
+#include "time.h"
 #include <stdint.h>
 #include <sys.h>
-#include <time.h>
+#include <arch/i686/drivers/rtc.h>
+#include <arch/i686/asm.h>
 
 #define CMOS_WRITE_PORT 0x70
 #define CMOS_READ_PORT  0x71
@@ -15,9 +16,16 @@
 #define CMOS_REG_YEAR   0x09
 #define CMOS_REG_CEN    0x32
 
+// Live buffers to work on data
 static struct Time time;
 static struct Time localtime;
-static int cur_offset = 0;
+
+// Front buffers so interupts dont request data that is half done
+static struct Time cur_time;
+static struct Time cur_localtime;
+
+// Current set Time Zone
+static enum Timezone last_timezone = UTC;
 
 static uint8_t cmos_read(uint8_t reg) {
     uint8_t hex, ret;
@@ -46,10 +54,12 @@ static void update_localtime(void) {
     // set localtime
     localtime = time;
 
-    // do we acutally need to do anything
-    if (cur_offset == 0) return;
-    localtime.hour += cur_offset;
-    
+    // if tz is UTC, we dont need to do anythin
+    if (last_timezone == UTC) {
+        cur_localtime = localtime;
+        return;
+    }
+
     // check if day rolled over
     change = localtime.hour < 0 ? -1 : localtime.hour >= 24 ? 1 : 0;
     if (!change) return;
@@ -98,13 +108,11 @@ year:
         localtime.yday = 0;
 
     localtime.year -= 1900;
+    
+    cur_localtime = localtime;
 
 }
 
-void rtc_set_timezone(int offset) {
-    cur_offset = offset;
-}
-
 void rtc_update(void) {
     time.sec = cmos_read(CMOS_REG_SEC);
     time.min = cmos_read(CMOS_REG_MIN);
@@ -127,12 +135,18 @@ void rtc_update(void) {
     time.year -= 1900;
 
     update_localtime();
+
+    cur_time = time;
 }
 
-struct Time *rtc_utctime(void) {
-    return &time;
+struct Time rtc_utctime(void) {
+    return cur_time;
 }
 
-struct Time *rtc_localtime(void) {
-     return &localtime;
+struct Time rtc_localtime(enum Timezone tz) {
+    if (tz != last_timezone) {
+        last_timezone = tz;
+        update_localtime();
+    }
+    return cur_localtime;
 }