xref: /openbmc/u-boot/include/efi_selftest.h (revision 4b684a6b)
1 /*
2  *  EFI application loader
3  *
4  *  Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
5  *
6  *  SPDX-License-Identifier:     GPL-2.0+
7  */
8 
9 #ifndef _EFI_SELFTEST_H
10 #define _EFI_SELFTEST_H
11 
12 #include <common.h>
13 #include <efi.h>
14 #include <efi_api.h>
15 #include <efi_loader.h>
16 #include <linker_lists.h>
17 
18 #define EFI_ST_SUCCESS 0
19 #define EFI_ST_FAILURE 1
20 
21 /*
22  * Prints an error message.
23  *
24  * @...	format string followed by fields to print
25  */
26 #define efi_st_error(...) \
27 	(efi_st_printf("%s(%u):\nERROR: ", __FILE__, __LINE__), \
28 	efi_st_printf(__VA_ARGS__)) \
29 
30 /*
31  * Prints a TODO message.
32  *
33  * @...	format string followed by fields to print
34  */
35 #define efi_st_todo(...) \
36 	(efi_st_printf("%s(%u):\nTODO: ", __FILE__, __LINE__), \
37 	efi_st_printf(__VA_ARGS__)) \
38 
39 /*
40  * A test may be setup and executed at boottime,
41  * it may be setup at boottime and executed at runtime,
42  * or it may be setup and executed at runtime.
43  */
44 enum efi_test_phase {
45 	EFI_EXECUTE_BEFORE_BOOTTIME_EXIT = 1,
46 	EFI_SETUP_BEFORE_BOOTTIME_EXIT,
47 	EFI_SETUP_AFTER_BOOTTIME_EXIT,
48 };
49 
50 extern struct efi_simple_text_output_protocol *con_out;
51 extern struct efi_simple_input_interface *con_in;
52 
53 /*
54  * Exit the boot services.
55  *
56  * The size of the memory map is determined.
57  * Pool memory is allocated to copy the memory map.
58  * The memory amp is copied and the map key is obtained.
59  * The map key is used to exit the boot services.
60  */
61 void efi_st_exit_boot_services(void);
62 
63 /*
64  * Print a pointer to an u16 string
65  *
66  * @pointer: pointer
67  * @buf: pointer to buffer address
68  * on return position of terminating zero word
69  */
70 void efi_st_printf(const char *fmt, ...)
71 		 __attribute__ ((format (__printf__, 1, 2)));
72 
73 /*
74  * Compare memory.
75  * We cannot use lib/string.c due to different CFLAGS values.
76  *
77  * @buf1:	first buffer
78  * @buf2:	second buffer
79  * @length:	number of bytes to compare
80  * @return:	0 if both buffers contain the same bytes
81  */
82 int efi_st_memcmp(const void *buf1, const void *buf2, size_t length);
83 
84 /*
85  * Compare an u16 string to a char string.
86  *
87  * @buf1:	u16 string
88  * @buf2:	char string
89  * @return:	0 if both buffers contain the same bytes
90  */
91 int efi_st_strcmp_16_8(const u16 *buf1, const char *buf2);
92 
93 /*
94  * Reads an Unicode character from the input device.
95  *
96  * @return: Unicode character
97  */
98 u16 efi_st_get_key(void);
99 
100 /**
101  * struct efi_unit_test - EFI unit test
102  *
103  * An efi_unit_test provides a interface to an EFI unit test.
104  *
105  * @name:	name of unit test
106  * @phase:	specifies when setup and execute are executed
107  * @setup:	set up the unit test
108  * @teardown:	tear down the unit test
109  * @execute:	execute the unit test
110  * @on_request:	test is only executed on request
111  */
112 struct efi_unit_test {
113 	const char *name;
114 	const enum efi_test_phase phase;
115 	int (*setup)(const efi_handle_t handle,
116 		     const struct efi_system_table *systable);
117 	int (*execute)(void);
118 	int (*teardown)(void);
119 	bool on_request;
120 };
121 
122 /* Declare a new EFI unit test */
123 #define EFI_UNIT_TEST(__name)						\
124 	ll_entry_declare(struct efi_unit_test, __name, efi_unit_test)
125 
126 #endif /* _EFI_SELFTEST_H */
127