1 // SPDX-License-Identifier: GPL-2.0
3  * KUnit test for the FPGA Bridge
12 #include <linux/fpga/fpga-bridge.h>
21 	struct fpga_bridge *bridge;  member
33 static int op_enable_set(struct fpga_bridge *bridge, bool enable)  in op_enable_set()  argument
35 	struct bridge_stats *stats = bridge->priv;  in op_enable_set()
37 	stats->enable = enable;  in op_enable_set()
43  * Fake FPGA bridge that implements only the enable_set op to track
51  * register_test_bridge() - Register a fake FPGA bridge for testing.
55  * Return: Context of the newly registered FPGA bridge.
65 	ctx->dev = kunit_device_register(test, dev_name);  in register_test_bridge()
66 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->dev);  in register_test_bridge()
68 	ctx->bridge = fpga_bridge_register(ctx->dev, "Fake FPGA bridge", &fake_bridge_ops,  in register_test_bridge()
69 					   &ctx->stats);  in register_test_bridge()
70 	KUNIT_ASSERT_FALSE(test, IS_ERR_OR_NULL(ctx->bridge));  in register_test_bridge()
72 	ret = kunit_add_action_or_reset(test, fpga_bridge_unregister_wrapper, ctx->bridge);  in register_test_bridge()
80 	struct bridge_ctx *ctx = test->priv;  in fpga_bridge_test_get()
81 	struct fpga_bridge *bridge;  in fpga_bridge_test_get()  local
83 	bridge = fpga_bridge_get(ctx->dev, NULL);  in fpga_bridge_test_get()
84 	KUNIT_EXPECT_PTR_EQ(test, bridge, ctx->bridge);  in fpga_bridge_test_get()
86 	bridge = fpga_bridge_get(ctx->dev, NULL);  in fpga_bridge_test_get()
87 	KUNIT_EXPECT_EQ(test, PTR_ERR(bridge), -EBUSY);  in fpga_bridge_test_get()
89 	fpga_bridge_put(ctx->bridge);  in fpga_bridge_test_get()
94 	struct bridge_ctx *ctx = test->priv;  in fpga_bridge_test_toggle()
97 	ret = fpga_bridge_disable(ctx->bridge);  in fpga_bridge_test_toggle()
99 	KUNIT_EXPECT_FALSE(test, ctx->stats.enable);  in fpga_bridge_test_toggle()
101 	ret = fpga_bridge_enable(ctx->bridge);  in fpga_bridge_test_toggle()
103 	KUNIT_EXPECT_TRUE(test, ctx->stats.enable);  in fpga_bridge_test_toggle()
113 	ctx_0 = test->priv;  in fpga_bridge_test_get_put_list()
114 	ctx_1 = register_test_bridge(test, "fpga-bridge-test-dev-1");  in fpga_bridge_test_get_put_list()
118 	/* Get bridge 0 and add it to the list */  in fpga_bridge_test_get_put_list()
119 	ret = fpga_bridge_get_to_list(ctx_0->dev, NULL, &bridge_list);  in fpga_bridge_test_get_put_list()
122 	KUNIT_EXPECT_PTR_EQ(test, ctx_0->bridge,  in fpga_bridge_test_get_put_list()
125 	/* Get bridge 1 and add it to the list */  in fpga_bridge_test_get_put_list()
126 	ret = fpga_bridge_get_to_list(ctx_1->dev, NULL, &bridge_list);  in fpga_bridge_test_get_put_list()
129 	KUNIT_EXPECT_PTR_EQ(test, ctx_1->bridge,  in fpga_bridge_test_get_put_list()
136 	KUNIT_EXPECT_FALSE(test, ctx_0->stats.enable);  in fpga_bridge_test_get_put_list()
137 	KUNIT_EXPECT_FALSE(test, ctx_1->stats.enable);  in fpga_bridge_test_get_put_list()
142 	KUNIT_EXPECT_TRUE(test, ctx_0->stats.enable);  in fpga_bridge_test_get_put_list()
143 	KUNIT_EXPECT_TRUE(test, ctx_1->stats.enable);  in fpga_bridge_test_get_put_list()
153 	test->priv = register_test_bridge(test, "fpga-bridge-test-dev-0");  in fpga_bridge_test_init()