1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (C) 2015 Google, Inc 4 */ 5 6 #include <common.h> 7 #include <console.h> 8 #include <dm.h> 9 #include <usb.h> 10 #include <asm/io.h> 11 #include <asm/state.h> 12 #include <asm/test.h> 13 #include <dm/device-internal.h> 14 #include <dm/test.h> 15 #include <dm/uclass-internal.h> 16 #include <test/ut.h> 17 18 /* Test that sandbox USB works correctly */ 19 static int dm_test_usb_base(struct unit_test_state *uts) 20 { 21 struct udevice *bus; 22 23 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 0, &bus)); 24 ut_assertok(uclass_get_device(UCLASS_USB, 0, &bus)); 25 ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_USB, 2, &bus)); 26 27 return 0; 28 } 29 DM_TEST(dm_test_usb_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 30 31 /* 32 * Test that we can use the flash stick. This is more of a functional test. It 33 * covers scanning the bug, setting up a hub and a flash stick and reading 34 * data from the flash stick. 35 */ 36 static int dm_test_usb_flash(struct unit_test_state *uts) 37 { 38 struct udevice *dev; 39 struct blk_desc *dev_desc; 40 char cmp[1024]; 41 42 state_set_skip_delays(true); 43 ut_assertok(usb_init()); 44 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev)); 45 ut_assertok(blk_get_device_by_str("usb", "0", &dev_desc)); 46 47 /* Read a few blocks and look for the string we expect */ 48 ut_asserteq(512, dev_desc->blksz); 49 memset(cmp, '\0', sizeof(cmp)); 50 ut_asserteq(2, blk_dread(dev_desc, 0, 2, cmp)); 51 ut_assertok(strcmp(cmp, "this is a test")); 52 ut_assertok(usb_stop()); 53 54 return 0; 55 } 56 DM_TEST(dm_test_usb_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 57 58 /* test that we can handle multiple storage devices */ 59 static int dm_test_usb_multi(struct unit_test_state *uts) 60 { 61 struct udevice *dev; 62 63 state_set_skip_delays(true); 64 ut_assertok(usb_init()); 65 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev)); 66 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev)); 67 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev)); 68 ut_assertok(usb_stop()); 69 70 return 0; 71 } 72 DM_TEST(dm_test_usb_multi, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 73 74 static int count_usb_devices(void) 75 { 76 struct udevice *hub; 77 struct uclass *uc; 78 int count = 0; 79 int ret; 80 81 ret = uclass_get(UCLASS_USB_HUB, &uc); 82 if (ret) 83 return ret; 84 85 uclass_foreach_dev(hub, uc) { 86 struct udevice *dev; 87 88 count++; 89 for (device_find_first_child(hub, &dev); 90 dev; 91 device_find_next_child(&dev)) { 92 count++; 93 } 94 } 95 96 return count; 97 } 98 99 /* test that no USB devices are found after we stop the stack */ 100 static int dm_test_usb_stop(struct unit_test_state *uts) 101 { 102 struct udevice *dev; 103 104 /* Scan and check that all devices are present */ 105 state_set_skip_delays(true); 106 ut_assertok(usb_init()); 107 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 0, &dev)); 108 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 1, &dev)); 109 ut_assertok(uclass_get_device(UCLASS_MASS_STORAGE, 2, &dev)); 110 ut_asserteq(6, count_usb_devices()); 111 ut_assertok(usb_stop()); 112 ut_asserteq(0, count_usb_devices()); 113 114 return 0; 115 } 116 DM_TEST(dm_test_usb_stop, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 117 118 static int dm_test_usb_keyb(struct unit_test_state *uts) 119 { 120 struct udevice *dev; 121 122 state_set_skip_delays(true); 123 ut_assertok(usb_init()); 124 125 /* Initially there should be no characters */ 126 ut_asserteq(0, tstc()); 127 128 ut_assertok(uclass_get_device_by_name(UCLASS_USB_EMUL, "keyb", 129 &dev)); 130 131 /* 132 * Add a string to the USB keyboard buffer - it should appear in 133 * stdin 134 */ 135 ut_assertok(sandbox_usb_keyb_add_string(dev, "ab")); 136 ut_asserteq(1, tstc()); 137 ut_asserteq('a', getc()); 138 ut_asserteq(1, tstc()); 139 ut_asserteq('b', getc()); 140 ut_asserteq(0, tstc()); 141 142 ut_assertok(usb_stop()); 143 144 return 0; 145 } 146 DM_TEST(dm_test_usb_keyb, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT); 147