summaryrefslogtreecommitdiff
path: root/firmware/drivers/rtc.c
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/drivers/rtc.c')
-rw-r--r--firmware/drivers/rtc.c17
1 files changed, 5 insertions, 12 deletions
diff --git a/firmware/drivers/rtc.c b/firmware/drivers/rtc.c
index 6458092348..ecfd2ac6ba 100644
--- a/firmware/drivers/rtc.c
+++ b/firmware/drivers/rtc.c
@@ -61,24 +61,17 @@ int rtc_write_datetime(unsigned char* buf)
61 return 1; 61 return 1;
62} 62}
63#elif CONFIG_RTC == RTC_PCF50606 63#elif CONFIG_RTC == RTC_PCF50606
64static int last_tick;
65static char rtc_buf[7];
66void rtc_init(void) 64void rtc_init(void)
67{ 65{
68 last_tick = 0;
69} 66}
70 67
71int rtc_read_datetime(unsigned char* buf) { 68int rtc_read_datetime(unsigned char* buf) {
72 int rc; 69 int rc;
73 if (last_tick + HZ/2 < current_tick) { 70 int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL);
74 int oldlevel = set_irq_level(HIGHEST_IRQ_LEVEL); 71
75 last_tick = current_tick; 72 rc = pcf50606_read_multiple(0x0a, buf, 7);
76 rc = pcf50606_read_multiple(0x0a, rtc_buf, 7); 73
77 set_irq_level(oldlevel); 74 set_irq_level(oldlevel);
78 } else {
79 rc = 7;
80 }
81 memcpy(buf, rtc_buf, 7);
82 return rc; 75 return rc;
83} 76}
84 77