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![Simon Glass](/assets/img/avatar_default.png)
Some uclasses want to set up a device before it is probed. Add a method for this. An example is with PCI, where a PCI uclass wants to set up its private data for later use. This allows the device's uclass() method to make calls whcih use that data (for example, read PCI memory regions from device tree, set up bus numbers). Signed-off-by: Simon Glass <sjg@chromium.org>
617 lines
16 KiB
C
617 lines
16 KiB
C
/*
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* Tests for the core driver model code
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*
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* Copyright (c) 2013 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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#include <dm.h>
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#include <fdtdec.h>
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#include <malloc.h>
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#include <dm/device-internal.h>
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#include <dm/root.h>
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#include <dm/ut.h>
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#include <dm/util.h>
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#include <dm/test.h>
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#include <dm/uclass-internal.h>
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DECLARE_GLOBAL_DATA_PTR;
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enum {
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TEST_INTVAL1 = 0,
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TEST_INTVAL2 = 3,
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TEST_INTVAL3 = 6,
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TEST_INTVAL_MANUAL = 101112,
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TEST_INTVAL_PRE_RELOC = 7,
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};
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static const struct dm_test_pdata test_pdata[] = {
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{ .ping_add = TEST_INTVAL1, },
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{ .ping_add = TEST_INTVAL2, },
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{ .ping_add = TEST_INTVAL3, },
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};
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static const struct dm_test_pdata test_pdata_manual = {
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.ping_add = TEST_INTVAL_MANUAL,
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};
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static const struct dm_test_pdata test_pdata_pre_reloc = {
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.ping_add = TEST_INTVAL_PRE_RELOC,
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};
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U_BOOT_DEVICE(dm_test_info1) = {
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.name = "test_drv",
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.platdata = &test_pdata[0],
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};
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U_BOOT_DEVICE(dm_test_info2) = {
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.name = "test_drv",
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.platdata = &test_pdata[1],
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};
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U_BOOT_DEVICE(dm_test_info3) = {
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.name = "test_drv",
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.platdata = &test_pdata[2],
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};
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static struct driver_info driver_info_manual = {
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.name = "test_manual_drv",
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.platdata = &test_pdata_manual,
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};
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static struct driver_info driver_info_pre_reloc = {
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.name = "test_pre_reloc_drv",
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.platdata = &test_pdata_manual,
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};
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void dm_leak_check_start(struct dm_test_state *dms)
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{
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dms->start = mallinfo();
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if (!dms->start.uordblks)
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puts("Warning: Please add '#define DEBUG' to the top of common/dlmalloc.c\n");
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}
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int dm_leak_check_end(struct dm_test_state *dms)
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{
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struct mallinfo end;
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int id;
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/* Don't delete the root class, since we started with that */
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for (id = UCLASS_ROOT + 1; id < UCLASS_COUNT; id++) {
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struct uclass *uc;
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uc = uclass_find(id);
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if (!uc)
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continue;
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ut_assertok(uclass_destroy(uc));
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}
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end = mallinfo();
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ut_asserteq(dms->start.uordblks, end.uordblks);
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return 0;
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}
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/* Test that binding with platdata occurs correctly */
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static int dm_test_autobind(struct dm_test_state *dms)
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{
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struct udevice *dev;
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/*
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* We should have a single class (UCLASS_ROOT) and a single root
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* device with no children.
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*/
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ut_assert(dms->root);
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ut_asserteq(1, list_count_items(&gd->uclass_root));
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ut_asserteq(0, list_count_items(&gd->dm_root->child_head));
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_POST_BIND]);
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ut_assertok(dm_scan_platdata(false));
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/* We should have our test class now at least, plus more children */
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ut_assert(1 < list_count_items(&gd->uclass_root));
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ut_assert(0 < list_count_items(&gd->dm_root->child_head));
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/* Our 3 dm_test_infox children should be bound to the test uclass */
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ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_POST_BIND]);
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/* No devices should be probed */
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list_for_each_entry(dev, &gd->dm_root->child_head, sibling_node)
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ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
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/* Our test driver should have been bound 3 times */
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ut_assert(dm_testdrv_op_count[DM_TEST_OP_BIND] == 3);
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return 0;
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}
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DM_TEST(dm_test_autobind, 0);
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/* Test that autoprobe finds all the expected devices */
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static int dm_test_autoprobe(struct dm_test_state *dms)
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{
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int expected_base_add;
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struct udevice *dev;
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struct uclass *uc;
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int i;
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ut_assertok(uclass_get(UCLASS_TEST, &uc));
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ut_assert(uc);
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_PRE_PROBE]);
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_POST_PROBE]);
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/* The root device should not be activated until needed */
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ut_assert(dms->root->flags & DM_FLAG_ACTIVATED);
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/*
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* We should be able to find the three test devices, and they should
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* all be activated as they are used (lazy activation, required by
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* U-Boot)
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*/
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for (i = 0; i < 3; i++) {
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ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
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ut_assert(dev);
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ut_assertf(!(dev->flags & DM_FLAG_ACTIVATED),
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"Driver %d/%s already activated", i, dev->name);
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/* This should activate it */
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ut_assertok(uclass_get_device(UCLASS_TEST, i, &dev));
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ut_assert(dev);
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ut_assert(dev->flags & DM_FLAG_ACTIVATED);
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/* Activating a device should activate the root device */
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if (!i)
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ut_assert(dms->root->flags & DM_FLAG_ACTIVATED);
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}
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/*
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* Our 3 dm_test_info children should be passed to pre_probe and
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* post_probe
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*/
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ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_POST_PROBE]);
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ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_PRE_PROBE]);
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/* Also we can check the per-device data */
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expected_base_add = 0;
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for (i = 0; i < 3; i++) {
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struct dm_test_uclass_perdev_priv *priv;
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struct dm_test_pdata *pdata;
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ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
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ut_assert(dev);
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priv = dev_get_uclass_priv(dev);
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ut_assert(priv);
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ut_asserteq(expected_base_add, priv->base_add);
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pdata = dev->platdata;
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expected_base_add += pdata->ping_add;
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}
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return 0;
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}
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DM_TEST(dm_test_autoprobe, DM_TESTF_SCAN_PDATA);
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/* Check that we see the correct platdata in each device */
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static int dm_test_platdata(struct dm_test_state *dms)
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{
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const struct dm_test_pdata *pdata;
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struct udevice *dev;
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int i;
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for (i = 0; i < 3; i++) {
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ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
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ut_assert(dev);
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pdata = dev->platdata;
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ut_assert(pdata->ping_add == test_pdata[i].ping_add);
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}
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return 0;
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}
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DM_TEST(dm_test_platdata, DM_TESTF_SCAN_PDATA);
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/* Test that we can bind, probe, remove, unbind a driver */
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static int dm_test_lifecycle(struct dm_test_state *dms)
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{
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int op_count[DM_TEST_OP_COUNT];
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struct udevice *dev, *test_dev;
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int pingret;
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int ret;
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memcpy(op_count, dm_testdrv_op_count, sizeof(op_count));
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ut_assertok(device_bind_by_name(dms->root, false, &driver_info_manual,
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&dev));
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ut_assert(dev);
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ut_assert(dm_testdrv_op_count[DM_TEST_OP_BIND]
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== op_count[DM_TEST_OP_BIND] + 1);
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ut_assert(!dev->priv);
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/* Probe the device - it should fail allocating private data */
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dms->force_fail_alloc = 1;
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ret = device_probe(dev);
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ut_assert(ret == -ENOMEM);
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ut_assert(dm_testdrv_op_count[DM_TEST_OP_PROBE]
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== op_count[DM_TEST_OP_PROBE] + 1);
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ut_assert(!dev->priv);
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/* Try again without the alloc failure */
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dms->force_fail_alloc = 0;
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ut_assertok(device_probe(dev));
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ut_assert(dm_testdrv_op_count[DM_TEST_OP_PROBE]
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== op_count[DM_TEST_OP_PROBE] + 2);
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ut_assert(dev->priv);
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/* This should be device 3 in the uclass */
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ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
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ut_assert(dev == test_dev);
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/* Try ping */
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ut_assertok(test_ping(dev, 100, &pingret));
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ut_assert(pingret == 102);
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/* Now remove device 3 */
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_PRE_REMOVE]);
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ut_assertok(device_remove(dev));
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_PRE_REMOVE]);
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_PRE_UNBIND]);
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ut_assertok(device_unbind(dev));
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_PRE_UNBIND]);
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return 0;
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}
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DM_TEST(dm_test_lifecycle, DM_TESTF_SCAN_PDATA | DM_TESTF_PROBE_TEST);
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/* Test that we can bind/unbind and the lists update correctly */
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static int dm_test_ordering(struct dm_test_state *dms)
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{
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struct udevice *dev, *dev_penultimate, *dev_last, *test_dev;
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int pingret;
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ut_assertok(device_bind_by_name(dms->root, false, &driver_info_manual,
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&dev));
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ut_assert(dev);
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/* Bind two new devices (numbers 4 and 5) */
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ut_assertok(device_bind_by_name(dms->root, false, &driver_info_manual,
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&dev_penultimate));
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ut_assert(dev_penultimate);
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ut_assertok(device_bind_by_name(dms->root, false, &driver_info_manual,
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&dev_last));
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ut_assert(dev_last);
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/* Now remove device 3 */
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ut_assertok(device_remove(dev));
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ut_assertok(device_unbind(dev));
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/* The device numbering should have shifted down one */
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ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
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ut_assert(dev_penultimate == test_dev);
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ut_assertok(uclass_find_device(UCLASS_TEST, 4, &test_dev));
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ut_assert(dev_last == test_dev);
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/* Add back the original device 3, now in position 5 */
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ut_assertok(device_bind_by_name(dms->root, false, &driver_info_manual,
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&dev));
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ut_assert(dev);
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/* Try ping */
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ut_assertok(test_ping(dev, 100, &pingret));
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ut_assert(pingret == 102);
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/* Remove 3 and 4 */
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ut_assertok(device_remove(dev_penultimate));
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ut_assertok(device_unbind(dev_penultimate));
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ut_assertok(device_remove(dev_last));
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ut_assertok(device_unbind(dev_last));
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/* Our device should now be in position 3 */
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ut_assertok(uclass_find_device(UCLASS_TEST, 3, &test_dev));
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ut_assert(dev == test_dev);
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/* Now remove device 3 */
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ut_assertok(device_remove(dev));
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ut_assertok(device_unbind(dev));
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return 0;
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}
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DM_TEST(dm_test_ordering, DM_TESTF_SCAN_PDATA);
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/* Check that we can perform operations on a device (do a ping) */
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int dm_check_operations(struct dm_test_state *dms, struct udevice *dev,
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uint32_t base, struct dm_test_priv *priv)
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{
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int expected;
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int pingret;
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/* Getting the child device should allocate platdata / priv */
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ut_assertok(testfdt_ping(dev, 10, &pingret));
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ut_assert(dev->priv);
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ut_assert(dev->platdata);
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expected = 10 + base;
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ut_asserteq(expected, pingret);
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/* Do another ping */
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ut_assertok(testfdt_ping(dev, 20, &pingret));
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expected = 20 + base;
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ut_asserteq(expected, pingret);
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/* Now check the ping_total */
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priv = dev->priv;
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ut_asserteq(DM_TEST_START_TOTAL + 10 + 20 + base * 2,
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priv->ping_total);
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return 0;
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}
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/* Check that we can perform operations on devices */
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static int dm_test_operations(struct dm_test_state *dms)
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{
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struct udevice *dev;
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int i;
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/*
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* Now check that the ping adds are what we expect. This is using the
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* ping-add property in each node.
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*/
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for (i = 0; i < ARRAY_SIZE(test_pdata); i++) {
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uint32_t base;
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ut_assertok(uclass_get_device(UCLASS_TEST, i, &dev));
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/*
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* Get the 'reg' property, which tells us what the ping add
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* should be. We don't use the platdata because we want
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* to test the code that sets that up (testfdt_drv_probe()).
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*/
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base = test_pdata[i].ping_add;
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debug("dev=%d, base=%d\n", i, base);
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ut_assert(!dm_check_operations(dms, dev, base, dev->priv));
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}
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return 0;
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}
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DM_TEST(dm_test_operations, DM_TESTF_SCAN_PDATA);
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/* Remove all drivers and check that things work */
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static int dm_test_remove(struct dm_test_state *dms)
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{
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struct udevice *dev;
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int i;
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for (i = 0; i < 3; i++) {
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ut_assertok(uclass_find_device(UCLASS_TEST, i, &dev));
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ut_assert(dev);
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ut_assertf(dev->flags & DM_FLAG_ACTIVATED,
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"Driver %d/%s not activated", i, dev->name);
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ut_assertok(device_remove(dev));
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ut_assertf(!(dev->flags & DM_FLAG_ACTIVATED),
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"Driver %d/%s should have deactivated", i,
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dev->name);
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ut_assert(!dev->priv);
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}
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return 0;
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}
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DM_TEST(dm_test_remove, DM_TESTF_SCAN_PDATA | DM_TESTF_PROBE_TEST);
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/* Remove and recreate everything, check for memory leaks */
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static int dm_test_leak(struct dm_test_state *dms)
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{
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int i;
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for (i = 0; i < 2; i++) {
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struct udevice *dev;
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int ret;
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int id;
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dm_leak_check_start(dms);
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ut_assertok(dm_scan_platdata(false));
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ut_assertok(dm_scan_fdt(gd->fdt_blob, false));
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/* Scanning the uclass is enough to probe all the devices */
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for (id = UCLASS_ROOT; id < UCLASS_COUNT; id++) {
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for (ret = uclass_first_device(UCLASS_TEST, &dev);
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dev;
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ret = uclass_next_device(&dev))
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;
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ut_assertok(ret);
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}
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ut_assertok(dm_leak_check_end(dms));
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}
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return 0;
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}
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DM_TEST(dm_test_leak, 0);
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/* Test uclass init/destroy methods */
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static int dm_test_uclass(struct dm_test_state *dms)
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{
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struct uclass *uc;
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ut_assertok(uclass_get(UCLASS_TEST, &uc));
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
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ut_asserteq(0, dm_testdrv_op_count[DM_TEST_OP_DESTROY]);
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ut_assert(uc->priv);
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ut_assertok(uclass_destroy(uc));
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_INIT]);
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ut_asserteq(1, dm_testdrv_op_count[DM_TEST_OP_DESTROY]);
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return 0;
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}
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DM_TEST(dm_test_uclass, 0);
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/**
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* create_children() - Create children of a parent node
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*
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* @dms: Test system state
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* @parent: Parent device
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* @count: Number of children to create
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* @key: Key value to put in first child. Subsequence children
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* receive an incrementing value
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* @child: If not NULL, then the child device pointers are written into
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* this array.
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* @return 0 if OK, -ve on error
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*/
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static int create_children(struct dm_test_state *dms, struct udevice *parent,
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int count, int key, struct udevice *child[])
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{
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struct udevice *dev;
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int i;
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for (i = 0; i < count; i++) {
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struct dm_test_pdata *pdata;
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ut_assertok(device_bind_by_name(parent, false,
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&driver_info_manual, &dev));
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pdata = calloc(1, sizeof(*pdata));
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pdata->ping_add = key + i;
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dev->platdata = pdata;
|
|
if (child)
|
|
child[i] = dev;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define NODE_COUNT 10
|
|
|
|
static int dm_test_children(struct dm_test_state *dms)
|
|
{
|
|
struct udevice *top[NODE_COUNT];
|
|
struct udevice *child[NODE_COUNT];
|
|
struct udevice *grandchild[NODE_COUNT];
|
|
struct udevice *dev;
|
|
int total;
|
|
int ret;
|
|
int i;
|
|
|
|
/* We don't care about the numbering for this test */
|
|
dms->skip_post_probe = 1;
|
|
|
|
ut_assert(NODE_COUNT > 5);
|
|
|
|
/* First create 10 top-level children */
|
|
ut_assertok(create_children(dms, dms->root, NODE_COUNT, 0, top));
|
|
|
|
/* Now a few have their own children */
|
|
ut_assertok(create_children(dms, top[2], NODE_COUNT, 2, NULL));
|
|
ut_assertok(create_children(dms, top[5], NODE_COUNT, 5, child));
|
|
|
|
/* And grandchildren */
|
|
for (i = 0; i < NODE_COUNT; i++)
|
|
ut_assertok(create_children(dms, child[i], NODE_COUNT, 50 * i,
|
|
i == 2 ? grandchild : NULL));
|
|
|
|
/* Check total number of devices */
|
|
total = NODE_COUNT * (3 + NODE_COUNT);
|
|
ut_asserteq(total, dm_testdrv_op_count[DM_TEST_OP_BIND]);
|
|
|
|
/* Try probing one of the grandchildren */
|
|
ut_assertok(uclass_get_device(UCLASS_TEST,
|
|
NODE_COUNT * 3 + 2 * NODE_COUNT, &dev));
|
|
ut_asserteq_ptr(grandchild[0], dev);
|
|
|
|
/*
|
|
* This should have probed the child and top node also, for a total
|
|
* of 3 nodes.
|
|
*/
|
|
ut_asserteq(3, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
|
|
|
|
/* Probe the other grandchildren */
|
|
for (i = 1; i < NODE_COUNT; i++)
|
|
ut_assertok(device_probe(grandchild[i]));
|
|
|
|
ut_asserteq(2 + NODE_COUNT, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
|
|
|
|
/* Probe everything */
|
|
for (ret = uclass_first_device(UCLASS_TEST, &dev);
|
|
dev;
|
|
ret = uclass_next_device(&dev))
|
|
;
|
|
ut_assertok(ret);
|
|
|
|
ut_asserteq(total, dm_testdrv_op_count[DM_TEST_OP_PROBE]);
|
|
|
|
/* Remove a top-level child and check that the children are removed */
|
|
ut_assertok(device_remove(top[2]));
|
|
ut_asserteq(NODE_COUNT + 1, dm_testdrv_op_count[DM_TEST_OP_REMOVE]);
|
|
dm_testdrv_op_count[DM_TEST_OP_REMOVE] = 0;
|
|
|
|
/* Try one with grandchildren */
|
|
ut_assertok(uclass_get_device(UCLASS_TEST, 5, &dev));
|
|
ut_asserteq_ptr(dev, top[5]);
|
|
ut_assertok(device_remove(dev));
|
|
ut_asserteq(1 + NODE_COUNT * (1 + NODE_COUNT),
|
|
dm_testdrv_op_count[DM_TEST_OP_REMOVE]);
|
|
|
|
/* Try the same with unbind */
|
|
ut_assertok(device_unbind(top[2]));
|
|
ut_asserteq(NODE_COUNT + 1, dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
|
|
dm_testdrv_op_count[DM_TEST_OP_UNBIND] = 0;
|
|
|
|
/* Try one with grandchildren */
|
|
ut_assertok(uclass_get_device(UCLASS_TEST, 5, &dev));
|
|
ut_asserteq_ptr(dev, top[6]);
|
|
ut_assertok(device_unbind(top[5]));
|
|
ut_asserteq(1 + NODE_COUNT * (1 + NODE_COUNT),
|
|
dm_testdrv_op_count[DM_TEST_OP_UNBIND]);
|
|
|
|
return 0;
|
|
}
|
|
DM_TEST(dm_test_children, 0);
|
|
|
|
/* Test that pre-relocation devices work as expected */
|
|
static int dm_test_pre_reloc(struct dm_test_state *dms)
|
|
{
|
|
struct udevice *dev;
|
|
|
|
/* The normal driver should refuse to bind before relocation */
|
|
ut_asserteq(-EPERM, device_bind_by_name(dms->root, true,
|
|
&driver_info_manual, &dev));
|
|
|
|
/* But this one is marked pre-reloc */
|
|
ut_assertok(device_bind_by_name(dms->root, true,
|
|
&driver_info_pre_reloc, &dev));
|
|
|
|
return 0;
|
|
}
|
|
DM_TEST(dm_test_pre_reloc, 0);
|
|
|
|
static int dm_test_uclass_before_ready(struct dm_test_state *dms)
|
|
{
|
|
struct uclass *uc;
|
|
|
|
ut_assertok(uclass_get(UCLASS_TEST, &uc));
|
|
|
|
memset(gd, '\0', sizeof(*gd));
|
|
ut_asserteq_ptr(NULL, uclass_find(UCLASS_TEST));
|
|
|
|
return 0;
|
|
}
|
|
|
|
DM_TEST(dm_test_uclass_before_ready, 0);
|
|
|
|
static int dm_test_device_get_uclass_id(struct dm_test_state *dms)
|
|
{
|
|
struct udevice *dev;
|
|
|
|
ut_assertok(uclass_get_device(UCLASS_TEST, 0, &dev));
|
|
ut_asserteq(UCLASS_TEST, device_get_uclass_id(dev));
|
|
|
|
return 0;
|
|
}
|
|
DM_TEST(dm_test_device_get_uclass_id, DM_TESTF_SCAN_PDATA);
|