u-boot/test/dm/test-driver.c
Simon Glass 2e7d35d2a6 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>
2014-03-04 12:15:29 -05:00

146 lines
2.9 KiB
C

/*
* 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,
};