diff options
Diffstat (limited to 'test/dm/gpio.c')
| -rw-r--r-- | test/dm/gpio.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/test/dm/gpio.c b/test/dm/gpio.c new file mode 100644 index 000000000..bf632bca5 --- /dev/null +++ b/test/dm/gpio.c @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2013 Google, Inc + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <fdtdec.h> +#include <dm.h> +#include <dm/ut.h> +#include <dm/test.h> +#include <dm/util.h> +#include <asm/gpio.h> + +/* Test that sandbox GPIOs work correctly */ +static int dm_test_gpio(struct dm_test_state *dms) +{ + unsigned int offset, gpio; + struct dm_gpio_ops *ops; + struct device *dev; + const char *name; + int offset_count; + char buf[80]; + + /* + * We expect to get 3 banks. One is anonymous (just numbered) and + * comes from platdata. The other two are named a (20 gpios) + * and b (10 gpios) and come from the device tree. See + * test/dm/test.dts. + */ + ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio)); + ut_asserteq_str(dev->name, "extra-gpios"); + ut_asserteq(4, offset); + ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio); + + name = gpio_get_bank_info(dev, &offset_count); + ut_asserteq_str("b", name); + ut_asserteq(10, offset_count); + + /* Get the operations for this device */ + ops = gpio_get_ops(dev); + ut_assert(ops->get_state); + + /* Cannot get a value until it is reserved */ + ut_asserteq(-1, ops->get_value(dev, offset)); + + /* + * Now some tests that use the 'sandbox' back door. All GPIOs + * should default to input, include b4 that we are using here. + */ + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: in: 0 [ ]", buf); + + /* Change it to an output */ + sandbox_gpio_set_direction(dev, offset, 1); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: out: 0 [ ]", buf); + + sandbox_gpio_set_value(dev, offset, 1); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: out: 1 [ ]", buf); + + ut_assertok(ops->request(dev, offset, "testing")); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: out: 1 [x] testing", buf); + + /* Change the value a bit */ + ut_asserteq(1, ops->get_value(dev, offset)); + ut_assertok(ops->set_value(dev, offset, 0)); + ut_asserteq(0, ops->get_value(dev, offset)); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: out: 0 [x] testing", buf); + ut_assertok(ops->set_value(dev, offset, 1)); + ut_asserteq(1, ops->get_value(dev, offset)); + + /* Make it an input */ + ut_assertok(ops->direction_input(dev, offset)); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: in: 1 [x] testing", buf); + sandbox_gpio_set_value(dev, offset, 0); + ut_asserteq(0, sandbox_gpio_get_value(dev, offset)); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: in: 0 [x] testing", buf); + + ut_assertok(ops->free(dev, offset)); + ut_assertok(ops->get_state(dev, offset, buf, sizeof(buf))); + ut_asserteq_str("b4: in: 0 [ ]", buf); + + /* Check the 'a' bank also */ + ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio)); + ut_asserteq_str(dev->name, "base-gpios"); + ut_asserteq(15, offset); + ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio); + + name = gpio_get_bank_info(dev, &offset_count); + ut_asserteq_str("a", name); + ut_asserteq(20, offset_count); + + /* And the anonymous bank */ + ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio)); + ut_asserteq_str(dev->name, "gpio_sandbox"); + ut_asserteq(14, offset); + ut_asserteq(14, gpio); + + name = gpio_get_bank_info(dev, &offset_count); + ut_asserteq_ptr(NULL, name); + ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count); + + return 0; +} +DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); |