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kvm tools, rtc: Introduce 'struct rtc_device'

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This patch introduces a 'struct rtc_device' in preparation for implementing
missing RTC features like alarms which need auxiliary data structures.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Pekka Enberg
2011-11-28 21:02:19 +02:00
committed by Will Deacon
parent 51b1454f8d
commit 2f06298902
1 changed files with 9 additions and 7 deletions
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hw/rtc.c
+9 -7
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@@ -5,8 +5,6 @@
#include <time.h>
static u8 cmos_index;
#define CMOS_RTC_SECONDS 0x00
#define CMOS_RTC_MINUTES 0x02
#define CMOS_RTC_HOURS 0x04
@@ -14,6 +12,12 @@ static u8 cmos_index;
#define CMOS_RTC_MONTH 0x08
#define CMOS_RTC_YEAR 0x09
struct rtc_device {
u8 cmos_idx;
};
static struct rtc_device rtc;
static inline unsigned char bin2bcd(unsigned val)
{
return ((val / 10) << 4) + val % 10;
@@ -28,7 +32,7 @@ static bool cmos_ram_data_in(struct ioport *ioport, struct kvm *kvm, u16 port, v
tm = gmtime(&ti);
switch (cmos_index) {
switch (rtc.cmos_idx) {
case CMOS_RTC_SECONDS:
ioport__write8(data, bin2bcd(tm->tm_sec));
break;
@@ -64,13 +68,11 @@ static struct ioport_operations cmos_ram_data_ioport_ops = {
static bool cmos_ram_index_out(struct ioport *ioport, struct kvm *kvm, u16 port, void *data, int size)
{
u8 value;
value = ioport__read8(data);
u8 value = ioport__read8(data);
kvm->nmi_disabled = value & (1UL << 7);
cmos_index = value & ~(1UL << 7);
rtc.cmos_idx = value & ~(1UL << 7);
return true;
}