mirror of
https://github.com/AsahiLinux/u-boot
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387 lines
14 KiB
C
387 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2013 Google, Inc
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*/
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#include <common.h>
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#include <fdtdec.h>
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#include <dm.h>
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#include <log.h>
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#include <malloc.h>
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#include <dm/root.h>
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#include <dm/test.h>
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#include <dm/util.h>
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#include <asm/gpio.h>
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#include <test/ut.h>
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/* Test that sandbox GPIOs work correctly */
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static int dm_test_gpio(struct unit_test_state *uts)
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{
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unsigned int offset, gpio;
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struct dm_gpio_ops *ops;
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struct udevice *dev;
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const char *name;
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int offset_count;
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char buf[80];
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/*
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* We expect to get 4 banks. One is anonymous (just numbered) and
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* comes from platdata. The other are named a (20 gpios),
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* b (10 gpios) and c (10 gpios) and come from the device tree. See
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* test/dm/test.dts.
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*/
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ut_assertok(gpio_lookup_name("b4", &dev, &offset, &gpio));
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ut_asserteq_str(dev->name, "extra-gpios");
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ut_asserteq(4, offset);
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ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 20 + 4, gpio);
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name = gpio_get_bank_info(dev, &offset_count);
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ut_asserteq_str("b", name);
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ut_asserteq(10, offset_count);
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/* Get the operations for this device */
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ops = gpio_get_ops(dev);
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ut_assert(ops->get_function);
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/* Cannot get a value until it is reserved */
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ut_asserteq(-EBUSY, gpio_get_value(gpio + 1));
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/*
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* Now some tests that use the 'sandbox' back door. All GPIOs
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* should default to input, include b4 that we are using here.
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*/
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: input: 0 [ ]", buf);
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/* Change it to an output */
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sandbox_gpio_set_direction(dev, offset, 1);
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: output: 0 [ ]", buf);
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sandbox_gpio_set_value(dev, offset, 1);
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: output: 1 [ ]", buf);
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ut_assertok(gpio_request(gpio, "testing"));
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: output: 1 [x] testing", buf);
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/* Change the value a bit */
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ut_asserteq(1, ops->get_value(dev, offset));
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ut_assertok(ops->set_value(dev, offset, 0));
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ut_asserteq(0, ops->get_value(dev, offset));
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: output: 0 [x] testing", buf);
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ut_assertok(ops->set_value(dev, offset, 1));
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ut_asserteq(1, ops->get_value(dev, offset));
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/* Make it an open drain output, and reset it */
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ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
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sandbox_gpio_get_dir_flags(dev, offset));
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ut_assertok(ops->set_dir_flags(dev, offset,
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GPIOD_IS_OUT | GPIOD_OPEN_DRAIN));
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ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
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sandbox_gpio_get_dir_flags(dev, offset));
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ut_assertok(ops->set_dir_flags(dev, offset,
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GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE));
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ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
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sandbox_gpio_get_dir_flags(dev, offset));
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/* Make it an input */
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ut_assertok(ops->direction_input(dev, offset));
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: input: 1 [x] testing", buf);
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sandbox_gpio_set_value(dev, offset, 0);
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ut_asserteq(0, sandbox_gpio_get_value(dev, offset));
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: input: 0 [x] testing", buf);
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ut_assertok(gpio_free(gpio));
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b4: input: 0 [ ]", buf);
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/* Check the 'a' bank also */
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ut_assertok(gpio_lookup_name("a15", &dev, &offset, &gpio));
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ut_asserteq_str(dev->name, "base-gpios");
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ut_asserteq(15, offset);
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ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT + 15, gpio);
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name = gpio_get_bank_info(dev, &offset_count);
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ut_asserteq_str("a", name);
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ut_asserteq(20, offset_count);
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return 0;
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}
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DM_TEST(dm_test_gpio, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that GPIO open-drain/open-source emulation works correctly */
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static int dm_test_gpio_opendrain_opensource(struct unit_test_state *uts)
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{
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struct gpio_desc desc_list[8];
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struct udevice *dev, *gpio_c;
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char buf[80];
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
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ut_asserteq_str("a-test", dev->name);
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ut_assertok(uclass_get_device(UCLASS_GPIO, 3, &gpio_c));
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ut_asserteq_str("pinmux-gpios", gpio_c->name);
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ut_asserteq(8, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
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ARRAY_SIZE(desc_list), 0))
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ut_asserteq(true, !!device_active(gpio_c));
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ut_asserteq_ptr(gpio_c, desc_list[0].dev);
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ut_asserteq_ptr(gpio_c, desc_list[1].dev);
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ut_asserteq_ptr(gpio_c, desc_list[2].dev);
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ut_asserteq_ptr(gpio_c, desc_list[3].dev);
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ut_asserteq_ptr(gpio_c, desc_list[4].dev);
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ut_asserteq_ptr(gpio_c, desc_list[5].dev);
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ut_asserteq_ptr(gpio_c, desc_list[6].dev);
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ut_asserteq_ptr(gpio_c, desc_list[7].dev);
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/* GPIO 0 is (GPIO_OUT|GPIO_OPEN_DRAIN) */
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ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
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sandbox_gpio_get_dir_flags(gpio_c, 0));
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/* Set it as output high, should become an input */
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ut_assertok(dm_gpio_set_value(&desc_list[0], 1));
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ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
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ut_asserteq_str("c0: input: 0 [x] a-test.test3-gpios0", buf);
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/* Set it as output low, should become output low */
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ut_assertok(dm_gpio_set_value(&desc_list[0], 0));
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ut_assertok(gpio_get_status(gpio_c, 0, buf, sizeof(buf)));
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ut_asserteq_str("c0: output: 0 [x] a-test.test3-gpios0", buf);
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/* GPIO 1 is (GPIO_OUT|GPIO_OPEN_SOURCE) */
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ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
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sandbox_gpio_get_dir_flags(gpio_c, 1));
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/* Set it as output high, should become output high */
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ut_assertok(dm_gpio_set_value(&desc_list[1], 1));
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ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
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ut_asserteq_str("c1: output: 1 [x] a-test.test3-gpios1", buf);
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/* Set it as output low, should become an input */
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ut_assertok(dm_gpio_set_value(&desc_list[1], 0));
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ut_assertok(gpio_get_status(gpio_c, 1, buf, sizeof(buf)));
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ut_asserteq_str("c1: input: 1 [x] a-test.test3-gpios1", buf);
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/* GPIO 6 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_DRAIN) */
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ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_DRAIN,
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sandbox_gpio_get_dir_flags(gpio_c, 6));
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/* Set it as output high, should become output low */
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ut_assertok(dm_gpio_set_value(&desc_list[6], 1));
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ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
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ut_asserteq_str("c6: output: 0 [x] a-test.test3-gpios6", buf);
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/* Set it as output low, should become an input */
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ut_assertok(dm_gpio_set_value(&desc_list[6], 0));
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ut_assertok(gpio_get_status(gpio_c, 6, buf, sizeof(buf)));
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ut_asserteq_str("c6: input: 0 [x] a-test.test3-gpios6", buf);
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/* GPIO 7 is (GPIO_ACTIVE_LOW|GPIO_OUT|GPIO_OPEN_SOURCE) */
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ut_asserteq(GPIOD_ACTIVE_LOW | GPIOD_IS_OUT | GPIOD_OPEN_SOURCE,
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sandbox_gpio_get_dir_flags(gpio_c, 7));
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/* Set it as output high, should become an input */
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ut_assertok(dm_gpio_set_value(&desc_list[7], 1));
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ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
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ut_asserteq_str("c7: input: 0 [x] a-test.test3-gpios7", buf);
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/* Set it as output low, should become output high */
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ut_assertok(dm_gpio_set_value(&desc_list[7], 0));
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ut_assertok(gpio_get_status(gpio_c, 7, buf, sizeof(buf)));
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ut_asserteq_str("c7: output: 1 [x] a-test.test3-gpios7", buf);
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ut_assertok(gpio_free_list(dev, desc_list, 8));
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return 0;
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}
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DM_TEST(dm_test_gpio_opendrain_opensource,
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DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that sandbox anonymous GPIOs work correctly */
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static int dm_test_gpio_anon(struct unit_test_state *uts)
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{
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unsigned int offset, gpio;
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struct udevice *dev;
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const char *name;
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int offset_count;
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/* And the anonymous bank */
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ut_assertok(gpio_lookup_name("14", &dev, &offset, &gpio));
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ut_asserteq_str(dev->name, "gpio_sandbox");
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ut_asserteq(14, offset);
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ut_asserteq(14, gpio);
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name = gpio_get_bank_info(dev, &offset_count);
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ut_asserteq_ptr(NULL, name);
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ut_asserteq(CONFIG_SANDBOX_GPIO_COUNT, offset_count);
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return 0;
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}
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DM_TEST(dm_test_gpio_anon, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that gpio_requestf() works as expected */
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static int dm_test_gpio_requestf(struct unit_test_state *uts)
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{
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unsigned int offset, gpio;
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struct udevice *dev;
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char buf[80];
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ut_assertok(gpio_lookup_name("b5", &dev, &offset, &gpio));
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ut_assertok(gpio_requestf(gpio, "testing %d %s", 1, "hi"));
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sandbox_gpio_set_direction(dev, offset, 1);
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sandbox_gpio_set_value(dev, offset, 1);
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b5: output: 1 [x] testing 1 hi", buf);
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return 0;
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}
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DM_TEST(dm_test_gpio_requestf, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that gpio_request() copies its string */
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static int dm_test_gpio_copy(struct unit_test_state *uts)
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{
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unsigned int offset, gpio;
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struct udevice *dev;
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char buf[80], name[10];
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ut_assertok(gpio_lookup_name("b6", &dev, &offset, &gpio));
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strcpy(name, "odd_name");
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ut_assertok(gpio_request(gpio, name));
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sandbox_gpio_set_direction(dev, offset, 1);
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sandbox_gpio_set_value(dev, offset, 1);
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
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strcpy(name, "nothing");
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ut_assertok(gpio_get_status(dev, offset, buf, sizeof(buf)));
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ut_asserteq_str("b6: output: 1 [x] odd_name", buf);
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return 0;
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}
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DM_TEST(dm_test_gpio_copy, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that we don't leak memory with GPIOs */
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static int dm_test_gpio_leak(struct unit_test_state *uts)
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{
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ut_assertok(dm_test_gpio(uts));
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ut_assertok(dm_test_gpio_anon(uts));
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ut_assertok(dm_test_gpio_requestf(uts));
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ut_assertok(dm_leak_check_end(uts));
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return 0;
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}
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DM_TEST(dm_test_gpio_leak, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Test that we can find GPIOs using phandles */
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static int dm_test_gpio_phandles(struct unit_test_state *uts)
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{
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struct gpio_desc desc, desc_list[8], desc_list2[8];
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struct udevice *dev, *gpio_a, *gpio_b;
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
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ut_asserteq_str("a-test", dev->name);
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ut_assertok(gpio_request_by_name(dev, "test-gpios", 1, &desc, 0));
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ut_assertok(uclass_get_device(UCLASS_GPIO, 1, &gpio_a));
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ut_assertok(uclass_get_device(UCLASS_GPIO, 2, &gpio_b));
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ut_asserteq_str("base-gpios", gpio_a->name);
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ut_asserteq(true, !!device_active(gpio_a));
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ut_asserteq_ptr(gpio_a, desc.dev);
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ut_asserteq(4, desc.offset);
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/* GPIOF_INPUT is the sandbox GPIO driver default */
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ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
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ut_assertok(dm_gpio_free(dev, &desc));
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ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 3, &desc,
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0));
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ut_asserteq_ptr(NULL, desc.dev);
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ut_asserteq(desc.offset, 0);
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ut_asserteq(-ENOENT, gpio_request_by_name(dev, "test-gpios", 5, &desc,
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0));
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/* Last GPIO is ignord as it comes after <0> */
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ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
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ARRAY_SIZE(desc_list), 0));
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ut_asserteq(-EBUSY, gpio_request_list_by_name(dev, "test-gpios",
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desc_list2,
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ARRAY_SIZE(desc_list2),
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0));
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ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 4, NULL));
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ut_assertok(gpio_free_list(dev, desc_list, 3));
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ut_asserteq(GPIOF_UNUSED, gpio_get_function(gpio_a, 4, NULL));
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ut_asserteq(3, gpio_request_list_by_name(dev, "test-gpios", desc_list,
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ARRAY_SIZE(desc_list),
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GPIOD_IS_OUT |
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GPIOD_IS_OUT_ACTIVE));
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ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_a, 4, NULL));
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ut_asserteq_ptr(gpio_a, desc_list[0].dev);
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ut_asserteq(1, desc_list[0].offset);
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ut_asserteq_ptr(gpio_a, desc_list[1].dev);
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ut_asserteq(4, desc_list[1].offset);
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ut_asserteq_ptr(gpio_b, desc_list[2].dev);
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ut_asserteq(5, desc_list[2].offset);
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ut_asserteq(1, dm_gpio_get_value(desc_list));
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ut_assertok(gpio_free_list(dev, desc_list, 3));
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ut_asserteq(GPIOD_IS_OUT | GPIOD_IS_OUT_ACTIVE,
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sandbox_gpio_get_dir_flags(gpio_a, 1));
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ut_asserteq(6, gpio_request_list_by_name(dev, "test2-gpios", desc_list,
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ARRAY_SIZE(desc_list), 0));
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/* This was set to output previously but flags resetted to 0 = INPUT */
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ut_asserteq(0, sandbox_gpio_get_dir_flags(gpio_a, 1));
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ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_a, 1, NULL));
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/* Active low should invert the input value */
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ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 6, NULL));
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ut_asserteq(1, dm_gpio_get_value(&desc_list[2]));
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ut_asserteq(GPIOF_INPUT, gpio_get_function(gpio_b, 7, NULL));
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ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 8, NULL));
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ut_asserteq(0, dm_gpio_get_value(&desc_list[4]));
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ut_asserteq(GPIOF_OUTPUT, gpio_get_function(gpio_b, 9, NULL));
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ut_asserteq(1, dm_gpio_get_value(&desc_list[5]));
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return 0;
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}
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DM_TEST(dm_test_gpio_phandles, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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/* Check the gpio pin configuration get from device tree information */
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static int dm_test_gpio_get_dir_flags(struct unit_test_state *uts)
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{
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struct gpio_desc desc_list[6];
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struct udevice *dev;
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ulong flags;
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ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
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ut_asserteq(6, gpio_request_list_by_name(dev, "test3-gpios", desc_list,
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ARRAY_SIZE(desc_list), 0));
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[0], &flags));
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ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_DRAIN, flags);
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[1], &flags));
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ut_asserteq(GPIOD_IS_OUT | GPIOD_OPEN_SOURCE, flags);
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[2], &flags));
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ut_asserteq(GPIOD_IS_OUT, flags);
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[3], &flags));
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ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_UP, flags);
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[4], &flags));
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ut_asserteq(GPIOD_IS_IN | GPIOD_PULL_DOWN, flags);
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ut_assertok(dm_gpio_get_dir_flags(&desc_list[5], &flags));
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ut_asserteq(GPIOD_IS_IN, flags);
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ut_assertok(gpio_free_list(dev, desc_list, 6));
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return 0;
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}
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DM_TEST(dm_test_gpio_get_dir_flags, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
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