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
26 static int op_enable_set(struct fpga_bridge *bridge, bool enable)  in op_enable_set()  argument
28 	struct bridge_stats *stats = bridge->priv;  in op_enable_set()
30 	stats->enable = enable;  in op_enable_set()
36  * Fake FPGA bridge that implements only the enable_set op to track
44  * register_test_bridge() - Register a fake FPGA bridge for testing.
47  * Return: Context of the newly registered FPGA bridge.
56 	ctx->pdev = platform_device_register_simple("bridge_pdev", PLATFORM_DEVID_AUTO, NULL, 0);  in register_test_bridge()
57 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->pdev);  in register_test_bridge()
59 	ctx->bridge = fpga_bridge_register(&ctx->pdev->dev, "Fake FPGA bridge", &fake_bridge_ops,  in register_test_bridge()
60 					   &ctx->stats);  in register_test_bridge()
61 	KUNIT_ASSERT_FALSE(test, IS_ERR_OR_NULL(ctx->bridge));  in register_test_bridge()
68 	fpga_bridge_unregister(ctx->bridge);  in unregister_test_bridge()
69 	platform_device_unregister(ctx->pdev);  in unregister_test_bridge()
74 	struct bridge_ctx *ctx = test->priv;  in fpga_bridge_test_get()
75 	struct fpga_bridge *bridge;  in fpga_bridge_test_get()  local
77 	bridge = fpga_bridge_get(&ctx->pdev->dev, NULL);  in fpga_bridge_test_get()
78 	KUNIT_EXPECT_PTR_EQ(test, bridge, ctx->bridge);  in fpga_bridge_test_get()
80 	bridge = fpga_bridge_get(&ctx->pdev->dev, NULL);  in fpga_bridge_test_get()
81 	KUNIT_EXPECT_EQ(test, PTR_ERR(bridge), -EBUSY);  in fpga_bridge_test_get()
83 	fpga_bridge_put(ctx->bridge);  in fpga_bridge_test_get()
88 	struct bridge_ctx *ctx = test->priv;  in fpga_bridge_test_toggle()
91 	ret = fpga_bridge_disable(ctx->bridge);  in fpga_bridge_test_toggle()
93 	KUNIT_EXPECT_FALSE(test, ctx->stats.enable);  in fpga_bridge_test_toggle()
95 	ret = fpga_bridge_enable(ctx->bridge);  in fpga_bridge_test_toggle()
97 	KUNIT_EXPECT_TRUE(test, ctx->stats.enable);  in fpga_bridge_test_toggle()
107 	ctx_0 = test->priv;  in fpga_bridge_test_get_put_list()
112 	/* Get bridge 0 and add it to the list */  in fpga_bridge_test_get_put_list()
113 	ret = fpga_bridge_get_to_list(&ctx_0->pdev->dev, NULL, &bridge_list);  in fpga_bridge_test_get_put_list()
116 	KUNIT_EXPECT_PTR_EQ(test, ctx_0->bridge,  in fpga_bridge_test_get_put_list()
119 	/* Get bridge 1 and add it to the list */  in fpga_bridge_test_get_put_list()
120 	ret = fpga_bridge_get_to_list(&ctx_1->pdev->dev, NULL, &bridge_list);  in fpga_bridge_test_get_put_list()
123 	KUNIT_EXPECT_PTR_EQ(test, ctx_1->bridge,  in fpga_bridge_test_get_put_list()
130 	KUNIT_EXPECT_FALSE(test, ctx_0->stats.enable);  in fpga_bridge_test_get_put_list()
131 	KUNIT_EXPECT_FALSE(test, ctx_1->stats.enable);  in fpga_bridge_test_get_put_list()
136 	KUNIT_EXPECT_TRUE(test, ctx_0->stats.enable);  in fpga_bridge_test_get_put_list()
137 	KUNIT_EXPECT_TRUE(test, ctx_1->stats.enable);  in fpga_bridge_test_get_put_list()
149 	test->priv = register_test_bridge(test);  in fpga_bridge_test_init()
156 	unregister_test_bridge(test->priv);  in fpga_bridge_test_exit()