efi_selftest_textinput.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_textinput
*
* Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* Provides a unit test for the EFI_SIMPLE_TEXT_INPUT_PROTOCOL.
* The Unicode character and the scan code are printed for text
* input. To run the test:
*
* setenv efi_selftest text input
* bootefi selftest
*/
#include <efi_selftest.h>
static struct efi_boot_services *boottime;
/*
* Setup unit test.
*
* @handle: handle of the loaded image
* @systable: system table
* @return: EFI_ST_SUCCESS for success
*/
static int setup(const efi_handle_t handle,
const struct efi_system_table *systable)
{
boottime = systable->boottime;
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* @return: EFI_ST_SUCCESS for success
*/
static int execute(void)
{
struct efi_input_key input_key = {0};
efi_status_t ret;
efi_uintn_t index;
/* Drain the console input */
ret = con_in->reset(con_in, true);
if (ret != EFI_SUCCESS) {
efi_st_error("Reset failed\n");
return EFI_ST_FAILURE;
}
ret = con_in->read_key_stroke(con_in, &input_key);
if (ret != EFI_NOT_READY) {
efi_st_error("Empty buffer not reported\n");
return EFI_ST_FAILURE;
}
efi_st_printf("Waiting for your input\n");
efi_st_printf("To terminate type 'x'\n");
for (;;) {
/* Wait for next key */
ret = boottime->wait_for_event(1, &con_in->wait_for_key,
&index);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("WaitForEvent failed\n");
return EFI_ST_FAILURE;
}
ret = con_in->read_key_stroke(con_in, &input_key);
if (ret != EFI_SUCCESS) {
efi_st_error("ReadKeyStroke failed\n");
return EFI_ST_FAILURE;
}
/* Allow 5 minutes until time out */
boottime->set_watchdog_timer(300, 0, 0, NULL);
efi_st_printf("Unicode char %u (%ps), scan code %u (%ps)\n",
(unsigned int)input_key.unicode_char,
efi_st_translate_char(input_key.unicode_char),
(unsigned int)input_key.scan_code,
efi_st_translate_code(input_key.scan_code));
switch (input_key.unicode_char) {
case 'x':
case 'X':
return EFI_ST_SUCCESS;
}
}
}
EFI_UNIT_TEST(textinput) = {
.name = "text input",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
.on_request = true,
};