diff options
| -rw-r--r-- | tests/rtc-test.c | 202 |
1 files changed, 199 insertions, 3 deletions
diff --git a/tests/rtc-test.c b/tests/rtc-test.c index c55215c..c5fd042 100644 --- a/tests/rtc-test.c +++ b/tests/rtc-test.c @@ -299,6 +299,197 @@ static void alarm_time(void) 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) { @@ -364,9 +555,14 @@ int main(int argc, char **argv) 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); |