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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/tests/m48t59-test.c
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/tests/m48t59-test.c')
-rw-r--r--qemu/tests/m48t59-test.c264
1 files changed, 264 insertions, 0 deletions
diff --git a/qemu/tests/m48t59-test.c b/qemu/tests/m48t59-test.c
new file mode 100644
index 000000000..71b4f2805
--- /dev/null
+++ b/qemu/tests/m48t59-test.c
@@ -0,0 +1,264 @@
+/*
+ * QTest testcase for the M48T59 and M48T08 real-time clocks
+ *
+ * Based on MC146818 RTC test:
+ * Copyright IBM, Corp. 2012
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#include <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "libqtest.h"
+
+#define RTC_SECONDS 0x9
+#define RTC_MINUTES 0xa
+#define RTC_HOURS 0xb
+
+#define RTC_DAY_OF_WEEK 0xc
+#define RTC_DAY_OF_MONTH 0xd
+#define RTC_MONTH 0xe
+#define RTC_YEAR 0xf
+
+static uint32_t base;
+static uint16_t reg_base = 0x1ff0; /* 0x7f0 for m48t02 */
+static int base_year;
+static bool use_mmio;
+
+static uint8_t cmos_read_mmio(uint8_t reg)
+{
+ return readb(base + (uint32_t)reg_base + (uint32_t)reg);
+}
+
+static void cmos_write_mmio(uint8_t reg, uint8_t val)
+{
+ uint8_t data = val;
+
+ writeb(base + (uint32_t)reg_base + (uint32_t)reg, data);
+}
+
+static uint8_t cmos_read_ioio(uint8_t reg)
+{
+ outw(base + 0, reg_base + (uint16_t)reg);
+ return inb(base + 3);
+}
+
+static void cmos_write_ioio(uint8_t reg, uint8_t val)
+{
+ outw(base + 0, reg_base + (uint16_t)reg);
+ outb(base + 3, val);
+}
+
+static uint8_t cmos_read(uint8_t reg)
+{
+ if (use_mmio) {
+ return cmos_read_mmio(reg);
+ } else {
+ return cmos_read_ioio(reg);
+ }
+}
+
+static void cmos_write(uint8_t reg, uint8_t val)
+{
+ if (use_mmio) {
+ cmos_write_mmio(reg, val);
+ } else {
+ cmos_write_ioio(reg, val);
+ }
+}
+
+static int bcd2dec(int value)
+{
+ return (((value >> 4) & 0x0F) * 10) + (value & 0x0F);
+}
+
+static int tm_cmp(struct tm *lhs, struct tm *rhs)
+{
+ time_t a, b;
+ struct tm d1, d2;
+
+ memcpy(&d1, lhs, sizeof(d1));
+ memcpy(&d2, rhs, sizeof(d2));
+
+ a = mktime(&d1);
+ b = mktime(&d2);
+
+ if (a < b) {
+ return -1;
+ } else if (a > b) {
+ return 1;
+ }
+
+ return 0;
+}
+
+#if 0
+static void print_tm(struct tm *tm)
+{
+ printf("%04d-%02d-%02d %02d:%02d:%02d %+02ld\n",
+ tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_gmtoff);
+}
+#endif
+
+static void cmos_get_date_time(struct tm *date)
+{
+ int sec, min, hour, mday, mon, year;
+ time_t ts;
+ struct tm dummy;
+
+ sec = cmos_read(RTC_SECONDS);
+ min = cmos_read(RTC_MINUTES);
+ hour = cmos_read(RTC_HOURS);
+ mday = cmos_read(RTC_DAY_OF_MONTH);
+ mon = cmos_read(RTC_MONTH);
+ year = cmos_read(RTC_YEAR);
+
+ sec = bcd2dec(sec);
+ min = bcd2dec(min);
+ hour = bcd2dec(hour);
+ mday = bcd2dec(mday);
+ mon = bcd2dec(mon);
+ year = bcd2dec(year);
+
+ ts = time(NULL);
+ localtime_r(&ts, &dummy);
+
+ date->tm_isdst = dummy.tm_isdst;
+ date->tm_sec = sec;
+ date->tm_min = min;
+ date->tm_hour = hour;
+ date->tm_mday = mday;
+ date->tm_mon = mon - 1;
+ date->tm_year = base_year + year - 1900;
+#ifndef __sun__
+ date->tm_gmtoff = 0;
+#endif
+
+ ts = mktime(date);
+}
+
+static void check_time(int wiggle)
+{
+ struct tm start, date[4], end;
+ struct tm *datep;
+ time_t ts;
+
+ /*
+ * This check assumes a few things. First, we cannot guarantee that we get
+ * a consistent reading from the wall clock because we may hit an edge of
+ * the clock while reading. To work around this, we read four clock readings
+ * such that at least two of them should match. We need to assume that one
+ * reading is corrupt so we need four readings to ensure that we have at
+ * least two consecutive identical readings
+ *
+ * It's also possible that we'll cross an edge reading the host clock so
+ * simply check to make sure that the clock reading is within the period of
+ * when we expect it to be.
+ */
+
+ ts = time(NULL);
+ gmtime_r(&ts, &start);
+
+ cmos_get_date_time(&date[0]);
+ cmos_get_date_time(&date[1]);
+ cmos_get_date_time(&date[2]);
+ cmos_get_date_time(&date[3]);
+
+ ts = time(NULL);
+ gmtime_r(&ts, &end);
+
+ if (tm_cmp(&date[0], &date[1]) == 0) {
+ datep = &date[0];
+ } else if (tm_cmp(&date[1], &date[2]) == 0) {
+ datep = &date[1];
+ } else if (tm_cmp(&date[2], &date[3]) == 0) {
+ datep = &date[2];
+ } else {
+ g_assert_not_reached();
+ }
+
+ if (!(tm_cmp(&start, datep) <= 0 && tm_cmp(datep, &end) <= 0)) {
+ long t, s;
+
+ start.tm_isdst = datep->tm_isdst;
+
+ t = (long)mktime(datep);
+ s = (long)mktime(&start);
+ if (t < s) {
+ g_test_message("RTC is %ld second(s) behind wall-clock\n", (s - t));
+ } else {
+ g_test_message("RTC is %ld second(s) ahead of wall-clock\n", (t - s));
+ }
+
+ g_assert_cmpint(ABS(t - s), <=, wiggle);
+ }
+}
+
+static int wiggle = 2;
+
+static void bcd_check_time(void)
+{
+ if (strcmp(qtest_get_arch(), "sparc64") == 0) {
+ base = 0x74;
+ base_year = 1900;
+ use_mmio = false;
+ } else if (strcmp(qtest_get_arch(), "sparc") == 0) {
+ base = 0x71200000;
+ base_year = 1968;
+ use_mmio = true;
+ } else { /* PPC: need to map macio in PCI */
+ g_assert_not_reached();
+ }
+ check_time(wiggle);
+}
+
+/* success if no crash or abort */
+static void fuzz_registers(void)
+{
+ unsigned int i;
+
+ for (i = 0; i < 1000; i++) {
+ uint8_t reg, val;
+
+ reg = (uint8_t)g_test_rand_int_range(0, 16);
+ val = (uint8_t)g_test_rand_int_range(0, 256);
+
+ if (reg == 7) {
+ /* watchdog setup register, may trigger system reset, skip */
+ continue;
+ }
+
+ cmos_write(reg, val);
+ cmos_read(reg);
+ }
+}
+
+int main(int argc, char **argv)
+{
+ QTestState *s = NULL;
+ int ret;
+
+ g_test_init(&argc, &argv, NULL);
+
+ s = qtest_start("-rtc clock=vm");
+
+ qtest_add_func("/rtc/bcd/check-time", bcd_check_time);
+ qtest_add_func("/rtc/fuzz-registers", fuzz_registers);
+ ret = g_test_run();
+
+ if (s) {
+ qtest_quit(s);
+ }
+
+ return ret;
+}