u-boot/drivers/misc/test_drv.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2014 Google, Inc
*/
#include <common.h>
#include <dm.h>
#include <dm/test.h>
#include <asm/global_data.h>
/* Records the last testbus device that was removed */
static struct udevice *testbus_removed;
struct udevice *testbus_get_clear_removed(void)
{
struct udevice *removed = testbus_removed;
testbus_removed = NULL;
return removed;
}
static int testbus_drv_probe(struct udevice *dev)
{
if (!CONFIG_IS_ENABLED(OF_PLATDATA)) {
int ret;
ret = dm_scan_fdt_dev(dev);
if (ret)
return ret;
}
return 0;
}
static int testbus_child_post_bind(struct udevice *dev)
{
struct dm_test_parent_plat *plat;
plat = dev_get_parent_plat(dev);
plat->bind_flag = 1;
plat->uclass_bind_flag = 2;
return 0;
}
static int testbus_child_pre_probe(struct udevice *dev)
{
struct dm_test_parent_data *parent_data = dev_get_parent_priv(dev);
parent_data->flag += TEST_FLAG_CHILD_PROBED;
return 0;
}
static int testbus_child_pre_probe_uclass(struct udevice *dev)
{
struct dm_test_priv *priv = dev_get_priv(dev);
priv->uclass_flag++;
return 0;
}
static int testbus_child_post_probe_uclass(struct udevice *dev)
{
struct dm_test_priv *priv = dev_get_priv(dev);
priv->uclass_postp++;
return 0;
}
static int testbus_child_post_remove(struct udevice *dev)
{
struct dm_test_parent_data *parent_data = dev_get_parent_priv(dev);
parent_data->flag += TEST_FLAG_CHILD_REMOVED;
testbus_removed = dev;
return 0;
}
static const struct udevice_id testbus_ids[] = {
{ .compatible = "denx,u-boot-test-bus", .data = DM_TEST_TYPE_FIRST },
{ }
};
U_BOOT_DRIVER(denx_u_boot_test_bus) = {
.name = "testbus_drv",
.of_match = testbus_ids,
.id = UCLASS_TEST_BUS,
.probe = testbus_drv_probe,
.child_post_bind = testbus_child_post_bind,
.priv_auto = sizeof(struct dm_test_priv),
.plat_auto = sizeof(struct dm_test_pdata),
.per_child_auto = sizeof(struct dm_test_parent_data),
.per_child_plat_auto = sizeof(struct dm_test_parent_plat),
.child_pre_probe = testbus_child_pre_probe,
.child_post_remove = testbus_child_post_remove,
DM_HEADER(<test.h>)
};
UCLASS_DRIVER(testbus) = {
.name = "testbus",
.id = UCLASS_TEST_BUS,
.flags = DM_UC_FLAG_SEQ_ALIAS,
.child_pre_probe = testbus_child_pre_probe_uclass,
.child_post_probe = testbus_child_post_probe_uclass,
.per_device_auto = sizeof(struct dm_test_uclass_priv),
/* Note: this is for dtoc testing as well as tags*/
.per_device_plat_auto = sizeof(struct dm_test_uclass_plat),
};
static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
{
const struct dm_test_pdata *pdata = dev_get_plat(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 = testfdt_drv_ping,
};
static int testfdt_of_to_plat(struct udevice *dev)
{
struct dm_test_pdata *pdata = dev_get_plat(dev);
pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
"ping-add", -1);
pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
"ping-expect");
return 0;
}
static int testfdt_drv_probe(struct udevice *dev)
{
struct dm_test_priv *priv = dev_get_priv(dev);
priv->ping_total += DM_TEST_START_TOTAL;
/*
* If this device is on a bus, the uclass_flag will be set before
* calling this function. In the meantime the uclass_postp is
* initlized to a value -1. These are used respectively by
* dm_test_bus_child_pre_probe_uclass() and
* dm_test_bus_child_post_probe_uclass().
*/
priv->uclass_total += priv->uclass_flag;
priv->uclass_postp = -1;
return 0;
}
static const struct udevice_id testfdt_ids[] = {
{ .compatible = "denx,u-boot-fdt-test", .data = DM_TEST_TYPE_FIRST },
{ .compatible = "google,another-fdt-test", .data = DM_TEST_TYPE_SECOND },
{ }
};
DM_DRIVER_ALIAS(denx_u_boot_fdt_test, google_another_fdt_test)
U_BOOT_DRIVER(denx_u_boot_fdt_test) = {
.name = "testfdt_drv",
.of_match = testfdt_ids,
.id = UCLASS_TEST_FDT,
.of_to_plat = testfdt_of_to_plat,
.probe = testfdt_drv_probe,
.ops = &test_ops,
.priv_auto = sizeof(struct dm_test_priv),
.plat_auto = sizeof(struct dm_test_pdata),
};
static const struct udevice_id testfdt1_ids[] = {
{ .compatible = "denx,u-boot-fdt-test1", .data = DM_TEST_TYPE_FIRST },
{ }
};
U_BOOT_DRIVER(testfdt1_drv) = {
.name = "testfdt1_drv",
.of_match = testfdt1_ids,
.id = UCLASS_TEST_FDT,
.of_to_plat = testfdt_of_to_plat,
.probe = testfdt_drv_probe,
.ops = &test_ops,
.priv_auto = sizeof(struct dm_test_priv),
.plat_auto = sizeof(struct dm_test_pdata),
.flags = DM_FLAG_PRE_RELOC,
};
/* From here is the testfdt uclass code */
int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
{
const struct test_ops *ops = device_get_ops(dev);
if (!ops->ping)
return -ENOSYS;
return ops->ping(dev, pingval, pingret);
}
UCLASS_DRIVER(testfdt) = {
.name = "testfdt",
.id = UCLASS_TEST_FDT,
.flags = DM_UC_FLAG_SEQ_ALIAS,
.priv_auto = sizeof(struct dm_test_uc_priv),
};
static const struct udevice_id testfdtm_ids[] = {
{ .compatible = "denx,u-boot-fdtm-test" },
{ }
};
U_BOOT_DRIVER(testfdtm_drv) = {
.name = "testfdtm_drv",
.of_match = testfdtm_ids,
.id = UCLASS_TEST_FDT_MANUAL,
};
UCLASS_DRIVER(testfdtm) = {
.name = "testfdtm",
.id = UCLASS_TEST_FDT_MANUAL,
.flags = DM_UC_FLAG_SEQ_ALIAS | DM_UC_FLAG_NO_AUTO_SEQ,
};