return (((value >> 4) & 0x0F) * 10) + (value & 0x0F);
}
-static int dec2bcd(int value)
-{
- return ((value / 10) << 4) | (value % 10);
-}
-
static uint8_t cmos_read(uint8_t reg)
{
outb(base + 0, reg);
static void set_year_20xx(void)
{
/* Set BCD mode */
- cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) & ~REG_B_DM);
+ cmos_write(RTC_REG_B, REG_B_24H);
cmos_write(RTC_REG_A, 0x76);
cmos_write(RTC_YEAR, 0x11);
cmos_write(RTC_CENTURY, 0x20);
static void set_year_1980(void)
{
/* Set BCD mode */
- cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) & ~REG_B_DM);
+ cmos_write(RTC_REG_B, REG_B_24H);
cmos_write(RTC_REG_A, 0x76);
cmos_write(RTC_YEAR, 0x80);
cmos_write(RTC_CENTURY, 0x19);
static void bcd_check_time(void)
{
/* Set BCD mode */
- cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) & ~REG_B_DM);
+ cmos_write(RTC_REG_B, REG_B_24H);
check_time(wiggle);
}
static void dec_check_time(void)
{
/* Set DEC mode */
- cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) | REG_B_DM);
+ cmos_write(RTC_REG_B, REG_B_24H | REG_B_DM);
check_time(wiggle);
}
-static void set_alarm_time(struct tm *tm)
-{
- int sec;
-
- sec = tm->tm_sec;
-
- if ((cmos_read(RTC_REG_B) & REG_B_DM) == 0) {
- sec = dec2bcd(sec);
- }
-
- cmos_write(RTC_SECONDS_ALARM, sec);
- cmos_write(RTC_MINUTES_ALARM, RTC_ALARM_DONT_CARE);
- cmos_write(RTC_HOURS_ALARM, RTC_ALARM_DONT_CARE);
-}
-
static void alarm_time(void)
{
struct tm now;
gmtime_r(&ts, &now);
/* set DEC mode */
- cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) | REG_B_DM);
+ cmos_write(RTC_REG_B, REG_B_24H | REG_B_DM);
g_assert(!get_irq(RTC_ISA_IRQ));
cmos_read(RTC_REG_C);
now.tm_sec = (now.tm_sec + 2) % 60;
- set_alarm_time(&now);
+ cmos_write(RTC_SECONDS_ALARM, now.tm_sec);
+ cmos_write(RTC_MINUTES_ALARM, RTC_ALARM_DONT_CARE);
+ cmos_write(RTC_HOURS_ALARM, RTC_ALARM_DONT_CARE);
cmos_write(RTC_REG_B, cmos_read(RTC_REG_B) | REG_B_AIE);
for (i = 0; i < 2 + wiggle; i++) {
g_assert(cmos_read(RTC_REG_C) == 0);
}
+static void set_time(int mode, int h, int m, int s)
+{
+ /* set BCD 12 hour mode */
+ cmos_write(RTC_REG_B, mode);
+
+ cmos_write(RTC_REG_A, 0x76);
+ cmos_write(RTC_HOURS, h);
+ cmos_write(RTC_MINUTES, m);
+ cmos_write(RTC_SECONDS, s);
+ cmos_write(RTC_REG_A, 0x26);
+}
+
+#define assert_time(h, m, s) \
+ do { \
+ g_assert_cmpint(cmos_read(RTC_HOURS), ==, h); \
+ g_assert_cmpint(cmos_read(RTC_MINUTES), ==, m); \
+ g_assert_cmpint(cmos_read(RTC_SECONDS), ==, s); \
+ } while(0)
+
+static void basic_12h_bcd(void)
+{
+ /* set BCD 12 hour mode */
+ set_time(0, 0x81, 0x59, 0x00);
+ clock_step(1000000000LL);
+ assert_time(0x81, 0x59, 0x01);
+ clock_step(59000000000LL);
+ assert_time(0x82, 0x00, 0x00);
+
+ /* test BCD wraparound */
+ set_time(0, 0x09, 0x59, 0x59);
+ clock_step(60000000000LL);
+ assert_time(0x10, 0x00, 0x59);
+
+ /* 12 AM -> 1 AM */
+ set_time(0, 0x12, 0x59, 0x59);
+ clock_step(1000000000LL);
+ assert_time(0x01, 0x00, 0x00);
+
+ /* 12 PM -> 1 PM */
+ set_time(0, 0x92, 0x59, 0x59);
+ clock_step(1000000000LL);
+ assert_time(0x81, 0x00, 0x00);
+
+ /* 11 AM -> 12 PM */
+ set_time(0, 0x11, 0x59, 0x59);
+ clock_step(1000000000LL);
+ assert_time(0x92, 0x00, 0x00);
+ /* TODO: test day wraparound */
+
+ /* 11 PM -> 12 AM */
+ set_time(0, 0x91, 0x59, 0x59);
+ clock_step(1000000000LL);
+ assert_time(0x12, 0x00, 0x00);
+ /* TODO: test day wraparound */
+}
+
+static void basic_12h_dec(void)
+{
+ /* set decimal 12 hour mode */
+ set_time(REG_B_DM, 0x81, 59, 0);
+ clock_step(1000000000LL);
+ assert_time(0x81, 59, 1);
+ clock_step(59000000000LL);
+ assert_time(0x82, 0, 0);
+
+ /* 12 PM -> 1 PM */
+ set_time(REG_B_DM, 0x8c, 59, 59);
+ clock_step(1000000000LL);
+ assert_time(0x81, 0, 0);
+
+ /* 12 AM -> 1 AM */
+ set_time(REG_B_DM, 0x0c, 59, 59);
+ clock_step(1000000000LL);
+ assert_time(0x01, 0, 0);
+
+ /* 11 AM -> 12 PM */
+ set_time(REG_B_DM, 0x0b, 59, 59);
+ clock_step(1000000000LL);
+ assert_time(0x8c, 0, 0);
+
+ /* 11 PM -> 12 AM */
+ set_time(REG_B_DM, 0x8b, 59, 59);
+ clock_step(1000000000LL);
+ assert_time(0x0c, 0, 0);
+ /* TODO: test day wraparound */
+}
+
+static void basic_24h_bcd(void)
+{
+ /* set BCD 24 hour mode */
+ set_time(REG_B_24H, 0x09, 0x59, 0x00);
+ clock_step(1000000000LL);
+ assert_time(0x09, 0x59, 0x01);
+ clock_step(59000000000LL);
+ assert_time(0x10, 0x00, 0x00);
+
+ /* test BCD wraparound */
+ set_time(REG_B_24H, 0x09, 0x59, 0x00);
+ clock_step(60000000000LL);
+ assert_time(0x10, 0x00, 0x00);
+
+ /* TODO: test day wraparound */
+ set_time(REG_B_24H, 0x23, 0x59, 0x00);
+ clock_step(60000000000LL);
+ assert_time(0x00, 0x00, 0x00);
+}
+
+static void basic_24h_dec(void)
+{
+ /* set decimal 24 hour mode */
+ set_time(REG_B_24H | REG_B_DM, 9, 59, 0);
+ clock_step(1000000000LL);
+ assert_time(9, 59, 1);
+ clock_step(59000000000LL);
+ assert_time(10, 0, 0);
+
+ /* test BCD wraparound */
+ set_time(REG_B_24H | REG_B_DM, 9, 59, 0);
+ clock_step(60000000000LL);
+ assert_time(10, 0, 0);
+
+ /* TODO: test day wraparound */
+ set_time(REG_B_24H | REG_B_DM, 23, 59, 0);
+ clock_step(60000000000LL);
+ assert_time(0, 0, 0);
+}
+
+static void am_pm_alarm(void)
+{
+ cmos_write(RTC_MINUTES_ALARM, 0xC0);
+ cmos_write(RTC_SECONDS_ALARM, 0xC0);
+
+ /* set BCD 12 hour mode */
+ cmos_write(RTC_REG_B, 0);
+
+ /* Set time and alarm hour. */
+ cmos_write(RTC_REG_A, 0x76);
+ cmos_write(RTC_HOURS_ALARM, 0x82);
+ cmos_write(RTC_HOURS, 0x81);
+ cmos_write(RTC_MINUTES, 0x59);
+ cmos_write(RTC_SECONDS, 0x00);
+ cmos_read(RTC_REG_C);
+ cmos_write(RTC_REG_A, 0x26);
+
+ /* Check that alarm triggers when AM/PM is set. */
+ clock_step(60000000000LL);
+ g_assert(cmos_read(RTC_HOURS) == 0x82);
+ g_assert((cmos_read(RTC_REG_C) & REG_C_AF) != 0);
+
+ /*
+ * Each of the following two tests takes over 60 seconds due to the time
+ * needed to report the PIT interrupts. Unfortunately, our PIT device
+ * model keeps counting even when GATE=0, so we cannot simply disable
+ * it in main().
+ */
+ if (g_test_quick()) {
+ return;
+ }
+
+ /* set DEC 12 hour mode */
+ cmos_write(RTC_REG_B, REG_B_DM);
+
+ /* Set time and alarm hour. */
+ cmos_write(RTC_REG_A, 0x76);
+ cmos_write(RTC_HOURS_ALARM, 0x82);
+ cmos_write(RTC_HOURS, 3);
+ cmos_write(RTC_MINUTES, 0);
+ cmos_write(RTC_SECONDS, 0);
+ cmos_read(RTC_REG_C);
+ cmos_write(RTC_REG_A, 0x26);
+
+ /* Check that alarm triggers. */
+ clock_step(3600 * 11 * 1000000000LL);
+ g_assert(cmos_read(RTC_HOURS) == 0x82);
+ g_assert((cmos_read(RTC_REG_C) & REG_C_AF) != 0);
+
+ /* Same as above, with inverted HOURS and HOURS_ALARM. */
+ cmos_write(RTC_REG_A, 0x76);
+ cmos_write(RTC_HOURS_ALARM, 2);
+ cmos_write(RTC_HOURS, 3);
+ cmos_write(RTC_MINUTES, 0);
+ cmos_write(RTC_SECONDS, 0);
+ cmos_read(RTC_REG_C);
+ cmos_write(RTC_REG_A, 0x26);
+
+ /* Check that alarm does not trigger if hours differ only by AM/PM. */
+ clock_step(3600 * 11 * 1000000000LL);
+ g_assert(cmos_read(RTC_HOURS) == 0x82);
+ g_assert((cmos_read(RTC_REG_C) & REG_C_AF) == 0);
+}
+
/* success if no crash or abort */
static void fuzz_registers(void)
{
static void register_b_set_flag(void)
{
/* Enable binary-coded decimal (BCD) mode and SET flag in Register B*/
- cmos_write(RTC_REG_B, (cmos_read(RTC_REG_B) & ~REG_B_DM) | REG_B_SET);
+ cmos_write(RTC_REG_B, REG_B_24H | REG_B_SET);
cmos_write(RTC_REG_A, 0x76);
cmos_write(RTC_YEAR, 0x11);
s = qtest_start("-display none -rtc clock=vm");
qtest_irq_intercept_in(s, "ioapic");
- qtest_add_func("/rtc/bcd/check-time", bcd_check_time);
- qtest_add_func("/rtc/dec/check-time", dec_check_time);
- qtest_add_func("/rtc/alarm-time", alarm_time);
+ qtest_add_func("/rtc/check-time/bcd", bcd_check_time);
+ qtest_add_func("/rtc/check-time/dec", dec_check_time);
+ qtest_add_func("/rtc/alarm/interrupt", alarm_time);
+ qtest_add_func("/rtc/alarm/am-pm", am_pm_alarm);
+ qtest_add_func("/rtc/basic/dec-24h", basic_24h_dec);
+ qtest_add_func("/rtc/basic/bcd-24h", basic_24h_bcd);
+ qtest_add_func("/rtc/basic/dec-12h", basic_12h_dec);
+ qtest_add_func("/rtc/basic/bcd-12h", basic_12h_bcd);
qtest_add_func("/rtc/set-year/20xx", set_year_20xx);
qtest_add_func("/rtc/set-year/1980", set_year_1980);
qtest_add_func("/rtc/register_b_set_flag", register_b_set_flag);
projects / sdk / emulator / qemu.git / commitdiff