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test: dm: update test for open-drain/open-source emulation in gpio-uclass

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Add tests for testing open-drain/open-source emulation in gpio-uclass.
It also adds two test3-gpios configured as GPIO_ACTIVE_LOW.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Neil Armstrong
2020-05-05 10:43:18 +02:00
parent 47bd533e9d
commit 9bf87e256c
2 changed files with 92 additions and 1 deletions
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4
arch/sandbox/dts/test.dts
View File

@@ -104,7 +104,9 @@
<&gpio_c 2 GPIO_OUT>,
<&gpio_c 3 (GPIO_IN|GPIO_PULL_UP)>,
<&gpio_c 4 (GPIO_IN|GPIO_PULL_DOWN)>,
<&gpio_c 5 GPIO_IN>;
<&gpio_c 5 GPIO_IN>,
<&gpio_c 6 (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN)>,
<&gpio_c 7 (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE)>;
int-value = <1234>;
uint-value = <(-1234)>;
int64-value = /bits/ 64 <0x1111222233334444>;

89
test/dm/gpio.c
View File

@@ -112,6 +112,95 @@ static int dm_test_gpio(struct unit_test_state *uts)
}
DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that GPIO open-drain/open-source emulation works correctly */
static int dm_test_gpio_opendrain_opensource(struct unit_test_state *uts)
{
struct gpio_desc desc_list[8];
struct udevice *dev, *gpio_c;
char buf[80];
ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
ut_asserteq_str("a-test", dev->name);
ut_assertok(uclass_get_device(UCLASS_GPIO, 3, &gpio_c));
ut_asserteq_str("pinmux-gpios", gpio_c->name);
ut_asserteq(8, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
ARRAY_SIZE(desc_list), 0))
ut_asserteq(true, !!device_active(gpio_c));
ut_asserteq_ptr(gpio_c, desc_list[0].dev);
ut_asserteq_ptr(gpio_c, desc_list[1].dev);
ut_asserteq_ptr(gpio_c, desc_list[2].dev);
ut_asserteq_ptr(gpio_c, desc_list[3].dev);
ut_asserteq_ptr(gpio_c, desc_list[4].dev);
ut_asserteq_ptr(gpio_c, desc_list[5].dev);
ut_asserteq_ptr(gpio_c, desc_list[6].dev);
ut_asserteq_ptr(gpio_c, desc_list[7].dev);
/* GPIO 0 is (GPIO_OUT|GPIO_OPEN_DRAIN) */
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
sandbox_gpio_get_dir_flags(gpio_c, 0));
/* Set it as output high, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[0], 1));
ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
ut_asserteq_str("c0: input: 0 [x] a-test.test3-gpios0", buf);
/* Set it as output low, should become output low */
ut_assertok(dm_gpio_set_value(&desc_list[0], 0));
ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
ut_asserteq_str("c0: output: 0 [x] a-test.test3-gpios0", buf);
/* GPIO 1 is (GPIO_OUT|GPIO_OPEN_SOURCE) */
ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
sandbox_gpio_get_dir_flags(gpio_c, 1));
/* Set it as output high, should become output high */
ut_assertok(dm_gpio_set_value(&desc_list[1], 1));
ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
ut_asserteq_str("c1: output: 1 [x] a-test.test3-gpios1", buf);
/* Set it as output low, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[1], 0));
ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
ut_asserteq_str("c1: input: 1 [x] a-test.test3-gpios1", buf);
/* GPIO 6 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN) */
ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
sandbox_gpio_get_dir_flags(gpio_c, 6));
/* Set it as output high, should become output low */
ut_assertok(dm_gpio_set_value(&desc_list[6], 1));
ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
ut_asserteq_str("c6: output: 0 [x] a-test.test3-gpios6", buf);
/* Set it as output low, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[6], 0));
ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
ut_asserteq_str("c6: input: 0 [x] a-test.test3-gpios6", buf);
/* GPIO 7 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE) */
ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
sandbox_gpio_get_dir_flags(gpio_c, 7));
/* Set it as output high, should become an input */
ut_assertok(dm_gpio_set_value(&desc_list[7], 1));
ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
ut_asserteq_str("c7: input: 0 [x] a-test.test3-gpios7", buf);
/* Set it as output low, should become output high */
ut_assertok(dm_gpio_set_value(&desc_list[7], 0));
ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
ut_asserteq_str("c7: output: 1 [x] a-test.test3-gpios7", buf);
ut_assertok(gpio_free_list(dev, desc_list, 8));
return 0;
}
DM_TEST(dm_test_gpio_opendrain_opensource,
DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
/* Test that sandbox anonymous GPIOs work correctly */
static int dm_test_gpio_anon(struct unit_test_state *uts)
{