diff mbox series

[v2,09/10] test: dm: rtc: add test of rtc_read, rtc_write

Message ID 20200519220117.24448-10-rasmus.villemoes@prevas.dk
State Accepted
Commit baed77913831325bf25dcc27ff72e1cd742a7cc3
Headers show
Series [v2,01/10] rtc: add rtc_read helper and ->read method | expand

Commit Message

Rasmus Villemoes May 19, 2020, 10:01 p.m. UTC 
Define a few aux registers and check that they can be read/written
individually. Also check that one can access the time-keeping
registers directly and get the expected results.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes at prevas.dk>
---
 arch/sandbox/include/asm/rtc.h |  5 ++++
 test/dm/rtc.c                  | 45 ++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)

Comments

Simon Glass May 31, 2020, 2:07 p.m. UTC | #1 
On Tue, 19 May 2020 at 16:01, Rasmus Villemoes
<rasmus.villemoes at prevas.dk> wrote:
>
> Define a few aux registers and check that they can be read/written
> individually. Also check that one can access the time-keeping
> registers directly and get the expected results.
>
> Signed-off-by: Rasmus Villemoes <rasmus.villemoes at prevas.dk>
> ---
>  arch/sandbox/include/asm/rtc.h |  5 ++++
>  test/dm/rtc.c                  | 45 ++++++++++++++++++++++++++++++++++
>  2 files changed, 50 insertions(+)

Reviewed-by: Simon Glass <sjg at chromium.org>
diff mbox series

Patch

diff --git a/arch/sandbox/include/asm/rtc.h b/arch/sandbox/include/asm/rtc.h
index 1fbfea7999..5bb032f59f 100644
--- a/arch/sandbox/include/asm/rtc.h
+++ b/arch/sandbox/include/asm/rtc.h
@@ -21,6 +21,11 @@  enum {
 
 	REG_RESET	= 0x20,
 
+	REG_AUX0	= 0x30,
+	REG_AUX1,
+	REG_AUX2,
+	REG_AUX3,
+
 	REG_COUNT	= 0x80,
 };
 
diff --git a/test/dm/rtc.c b/test/dm/rtc.c
index e5454139cd..5301805d19 100644
--- a/test/dm/rtc.c
+++ b/test/dm/rtc.c
@@ -9,6 +9,7 @@ 
 #include <i2c.h>
 #include <rtc.h>
 #include <asm/io.h>
+#include <asm/rtc.h>
 #include <asm/test.h>
 #include <dm/test.h>
 #include <test/ut.h>
@@ -129,6 +130,50 @@  static int dm_test_rtc_set_get(struct unit_test_state *uts)
 }
 DM_TEST(dm_test_rtc_set_get, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 
+static int dm_test_rtc_read_write(struct unit_test_state *uts)
+{
+	struct rtc_time time;
+	struct udevice *dev, *emul;
+	long old_offset;
+	u8 buf[4], reg;
+
+	ut_assertok(uclass_get_device(UCLASS_RTC, 0, &dev));
+
+	memcpy(buf, "car", 4);
+	ut_assertok(rtc_write(dev, REG_AUX0, buf, 4));
+	memset(buf, '\0', sizeof(buf));
+	ut_assertok(rtc_read(dev, REG_AUX0, buf, 4));
+	ut_asserteq(memcmp(buf, "car", 4), 0);
+
+	reg = 'b';
+	ut_assertok(rtc_write(dev, REG_AUX0, &reg, 1));
+	memset(buf, '\0', sizeof(buf));
+	ut_assertok(rtc_read(dev, REG_AUX0, buf, 4));
+	ut_asserteq(memcmp(buf, "bar", 4), 0);
+
+	reg = 't';
+	ut_assertok(rtc_write(dev, REG_AUX2, &reg, 1));
+	memset(buf, '\0', sizeof(buf));
+	ut_assertok(rtc_read(dev, REG_AUX1, buf, 3));
+	ut_asserteq(memcmp(buf, "at", 3), 0);
+
+	ut_assertok(i2c_emul_find(dev, &emul));
+	ut_assert(emul != NULL);
+
+	old_offset = sandbox_i2c_rtc_set_offset(emul, false, 0);
+	ut_assertok(dm_rtc_get(dev, &time));
+
+	ut_assertok(rtc_read(dev, REG_SEC, &reg, 1));
+	ut_asserteq(time.tm_sec, reg);
+	ut_assertok(rtc_read(dev, REG_MDAY, &reg, 1));
+	ut_asserteq(time.tm_mday, reg);
+
+	sandbox_i2c_rtc_set_offset(emul, true, old_offset);
+
+	return 0;
+}
+DM_TEST(dm_test_rtc_read_write, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
+
 /* Reset the time */
 static int dm_test_rtc_reset(struct unit_test_state *uts)
 {