test: Move some test drivers into their own file

At present several test drivers are part of the test file itself. Some of
these are useful for of-platdata tests. Separate them out so we can use
them for other things also.

A few adjustments are needed so this driver can build for sandbox_spl as
well.

Signed-off-by: Simon Glass <sjg@chromium.org>

3 files changed, 232 insertions, 0 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 29432ae..7d2a299 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -343,6 +343,15 @@ config TEGRA186_BPMP
 	  can make requests to the BPMP. This driver is similar to an MFD
 	  driver in the Linux kernel.
 
+config TEST_DRV
+	bool "Enable support for test drivers"
+	default y if SANDBOX
+	help
+	  This enables drivers and uclasses that provides a way of testing the
+	  operations of memory allocation and driver/uclass methods in driver
+	  model. This should only be enabled for testing as it is not useful for
+	  anything else.
+
 config TWL4030_LED
 	bool "Enable TWL4030 LED controller"
 	help
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 947bd3a..d737203 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -67,6 +67,7 @@ obj-$(CONFIG_STM32_RCC) += stm32_rcc.o
 obj-$(CONFIG_SYS_DPAA_QBMAN) += fsl_portals.o
 obj-$(CONFIG_TEGRA186_BPMP) += tegra186_bpmp.o
 obj-$(CONFIG_TEGRA_CAR) += tegra_car.o
+obj-$(CONFIG_TEST_DRV) += test_drv.o
 obj-$(CONFIG_TWL4030_LED) += twl4030_led.o
 obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress_config.o
 obj-$(CONFIG_WINBOND_W83627) += winbond_w83627.o
diff --git a/drivers/misc/test_drv.c b/drivers/misc/test_drv.c
new file mode 100644
index 0000000..7dd3de3
--- /dev/null
+++ b/drivers/misc/test_drv.c
@@ -0,0 +1,222 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2014 Google, Inc
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/test.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(testbus_drv) = {
+	.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,
+};
+
+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,
+};
+
+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 },
+	{ }
+};
+
+U_BOOT_DRIVER(testfdt_drv) = {
+	.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,
+};
+
+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,
+};