dm: Add basic tests
Add some tests of driver model functionality. Coverage includes:
- basic init
- binding of drivers to devices using platform_data
- automatic probing of devices when referenced
- availability of platform data to devices
- lifecycle from bind to probe to remove to unbind
- renumbering within a uclass when devices are probed/removed
- calling driver-defined operations
- deactivation of drivers when removed
- memory leak across creation and destruction of drivers/uclasses
- uclass init/destroy methods
- automatic probe/remove of children/parents when needed
This function is enabled for sandbox, using CONFIG_DM_TEST.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/test-driver.c b/test/dm/test-driver.c
new file mode 100644
index 0000000..c4be8a1
--- /dev/null
+++ b/test/dm/test-driver.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2013 Google, Inc
+ *
+ * (C) Copyright 2012
+ * Pavel Herrmann <morpheus.ibis@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <malloc.h>
+#include <dm/test.h>
+#include <dm/ut.h>
+#include <asm/io.h>
+
+int dm_testdrv_op_count[DM_TEST_OP_COUNT];
+static struct dm_test_state *dms = &global_test_state;
+
+static int testdrv_ping(struct device *dev, int pingval, int *pingret)
+{
+ const struct dm_test_pdata *pdata = dev_get_platdata(dev);
+ struct dm_test_priv *priv = dev_get_priv(dev);
+
+ *pingret = pingval + pdata->ping_add;
+ priv->ping_total += *pingret;
+
+ return 0;
+}
+
+static const struct test_ops test_ops = {
+ .ping = testdrv_ping,
+};
+
+static int test_bind(struct device *dev)
+{
+ /* Private data should not be allocated */
+ ut_assert(!dev_get_priv(dev));
+
+ dm_testdrv_op_count[DM_TEST_OP_BIND]++;
+ return 0;
+}
+
+static int test_probe(struct device *dev)
+{
+ struct dm_test_priv *priv = dev_get_priv(dev);
+
+ /* Private data should be allocated */
+ ut_assert(priv);
+
+ dm_testdrv_op_count[DM_TEST_OP_PROBE]++;
+ priv->ping_total += DM_TEST_START_TOTAL;
+ return 0;
+}
+
+static int test_remove(struct device *dev)
+{
+ /* Private data should still be allocated */
+ ut_assert(dev_get_priv(dev));
+
+ dm_testdrv_op_count[DM_TEST_OP_REMOVE]++;
+ return 0;
+}
+
+static int test_unbind(struct device *dev)
+{
+ /* Private data should not be allocated */
+ ut_assert(!dev->priv);
+
+ dm_testdrv_op_count[DM_TEST_OP_UNBIND]++;
+ return 0;
+}
+
+U_BOOT_DRIVER(test_drv) = {
+ .name = "test_drv",
+ .id = UCLASS_TEST,
+ .ops = &test_ops,
+ .bind = test_bind,
+ .probe = test_probe,
+ .remove = test_remove,
+ .unbind = test_unbind,
+ .priv_auto_alloc_size = sizeof(struct dm_test_priv),
+};
+
+U_BOOT_DRIVER(test2_drv) = {
+ .name = "test2_drv",
+ .id = UCLASS_TEST,
+ .ops = &test_ops,
+ .bind = test_bind,
+ .probe = test_probe,
+ .remove = test_remove,
+ .unbind = test_unbind,
+ .priv_auto_alloc_size = sizeof(struct dm_test_priv),
+};
+
+static int test_manual_drv_ping(struct device *dev, int pingval, int *pingret)
+{
+ *pingret = pingval + 2;
+
+ return 0;
+}
+
+static const struct test_ops test_manual_ops = {
+ .ping = test_manual_drv_ping,
+};
+
+static int test_manual_bind(struct device *dev)
+{
+ dm_testdrv_op_count[DM_TEST_OP_BIND]++;
+
+ return 0;
+}
+
+static int test_manual_probe(struct device *dev)
+{
+ dm_testdrv_op_count[DM_TEST_OP_PROBE]++;
+ if (!dms->force_fail_alloc)
+ dev->priv = calloc(1, sizeof(struct dm_test_priv));
+ if (!dev->priv)
+ return -ENOMEM;
+
+ return 0;
+}
+
+static int test_manual_remove(struct device *dev)
+{
+ dm_testdrv_op_count[DM_TEST_OP_REMOVE]++;
+ return 0;
+}
+
+static int test_manual_unbind(struct device *dev)
+{
+ dm_testdrv_op_count[DM_TEST_OP_UNBIND]++;
+ return 0;
+}
+
+U_BOOT_DRIVER(test_manual_drv) = {
+ .name = "test_manual_drv",
+ .id = UCLASS_TEST,
+ .ops = &test_manual_ops,
+ .bind = test_manual_bind,
+ .probe = test_manual_probe,
+ .remove = test_manual_remove,
+ .unbind = test_manual_unbind,
+};