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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2023 Karel Gardas
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <bsp.h>
#include <efi.h>
#include <efilib.h>
#include <rtems/bspIo.h>
#include <efistop.h>
#include <stdio.h>
#include <string.h>
#ifdef BSP_USE_EFI_BOOT_SERVICES
static void
print_stop_info(SIMPLE_TEXT_OUTPUT_INTERFACE* stop);
void
efi_init_text_output(int hint)
{
int maxval = ST->ConOut->Mode->MaxMode - 1;
int curval = ST->ConOut->Mode->Mode;
ST->ConOut->Reset(ST->ConOut, true);
if (hint != -1) {
/* hint got from command-line does have highest priority */
ST->ConOut->SetMode(ST->ConOut, hint);
}
else if (strcmp(BSP_EFI_SIMPLE_TEXT_OUTPUT_MODE_VALUE, "MAX") == 0) {
ST->ConOut->SetMode(ST->ConOut, maxval);
}
else if (strcmp(BSP_EFI_SIMPLE_TEXT_OUTPUT_MODE_VALUE, "AUTO") == 0) {
ST->ConOut->SetMode(ST->ConOut, curval);
}
else {
ST->ConOut->SetMode(ST->ConOut, atoi(BSP_EFI_SIMPLE_TEXT_OUTPUT_MODE_VALUE));
}
ST->ConOut->EnableCursor(ST->ConOut, TRUE);
print_stop_info(ST->ConOut);
ST->ConOut->ClearScreen(ST->ConOut);
}
void
efi_text_output_char(char c)
{
EFI_STATUS status;
char tocpy[2];
tocpy[0] = c;
tocpy[1] = 0;
CHAR16 str[2];
cpy8to16(tocpy, str, 2);
status = ST->ConOut->TestString(ST->ConOut, str);
if (EFI_ERROR(status))
str[0] = '?';
ST->ConOut->OutputString(ST->ConOut, str);
}
static void
print_stop_info(SIMPLE_TEXT_OUTPUT_INTERFACE* stop)
{
EFI_STATUS status;
int max_mode = stop->Mode->MaxMode;
int current_mode = stop->Mode->Mode;
printf("RTEMS: text output: current mode: %d, max mode: %d\n", current_mode, (max_mode - 1));
UINTN columns = 0;
UINTN rows = 0;
for (int i = 0; i < max_mode; i++) {
if (current_mode == i)
printf(" -> ");
else
printf(" ");
status = stop->QueryMode(stop, i, &columns, &rows);
if (EFI_ERROR(status))
printf("%d. mode: error: can't obtain column x row values.\n", i);
else {
printf("%d. mode: %ld * %ld\n", i, columns, rows);
}
}
}
#endif
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