aurix/boot/platform/uefi/entry.c
2025-05-20 19:24:16 +02:00

98 lines
3.8 KiB
C

/*********************************************************************************/
/* Module Name: entry.c */
/* Project: AurixOS */
/* */
/* Copyright (c) 2024-2025 Jozef Nagy */
/* */
/* This source is subject to the MIT License. */
/* See License.txt in the root of this repository. */
/* All other rights reserved. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
/* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
/* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
/* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
/* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE */
/* SOFTWARE. */
/*********************************************************************************/
#include <efi.h>
#include <efilib.h>
#include <axboot.h>
#include <mm/mman.h>
#include <lib/string.h>
#include <print.h>
#include <stdint.h>
#include <stddef.h>
#define INI_IMPLEMENTATION
#include <config/ini.h>
EFI_HANDLE gImageHandle;
EFI_SYSTEM_TABLE *gSystemTable;
EFI_BOOT_SERVICES *gBootServices;
EFI_SIMPLE_POINTER_PROTOCOL *gPointerProtocol;
uint16_t mouse_resx;
uint16_t mouse_resy;
EFI_STATUS uefi_entry(EFI_HANDLE ImageHandle,
EFI_SYSTEM_TABLE *SystemTable)
{
EFI_STATUS Status;
EFI_GUID spp_guid = EFI_SIMPLE_POINTER_PROTOCOL_GUID;
EFI_SIMPLE_POINTER_PROTOCOL *spp[5];
gImageHandle = ImageHandle;
gSystemTable = SystemTable;
gBootServices = SystemTable->BootServices;
// reset input
gSystemTable->ConIn->Reset(gSystemTable->ConIn, EFI_FALSE);
// clear the screen
gSystemTable->ConOut->ClearScreen(gSystemTable->ConOut);
// disable UEFI watchdog
Status = gSystemTable->BootServices->SetWatchdogTimer(0, 0, 0, NULL);
if (EFI_ERROR(Status)) {
debug("uefi_entry(): Couldn't disable UEFI watchdog: %s (%x)\n", efi_status_to_str(Status), Status);
}
// load that mouse up
EFI_UINTN spp_handles = 0;
EFI_HANDLE *spp_handle_buf = NULL;
Status = gBootServices->LocateHandleBuffer(ByProtocol, &spp_guid, NULL, &spp_handles, &spp_handle_buf);
if (EFI_ERROR(Status)) {
debug("uefi_entry(): Failed to locate Simple Pointer Protocol handle buffer: %s (%x).", efi_status_to_str(Status), Status);
} else {
debug("uefi_entry(): Found %u handle%s\n", spp_handles, spp_handles == 1 ? "" : "s");
for (EFI_UINTN i = 0; i < spp_handles; i++) {
Status = gBootServices->OpenProtocol(spp_handle_buf[i], &spp_guid, (void **)&spp[i], gImageHandle, NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL);
if (EFI_ERROR(Status)) {
debug("uefi_entry(): Failed to open Simple Pointer Protocol on handle: %s (%x)\n", efi_status_to_str(Status), Status);
continue;
}
debug("uefi_entry(): Found SPP with ResX=%u, ResY=%u\n", spp[i]->Mode->ResolutionX, spp[i]->Mode->ResolutionY);
if (spp[i]->Reset(spp[i], EFI_TRUE) == EFI_DEVICE_ERROR) {
debug("uefi_entry(): Failed to reset device\n");
continue;
}
if (spp[i]->Mode->ResolutionX < 65536) {
gPointerProtocol = spp[i];
mouse_resx = spp[i]->Mode->ResolutionX;
mouse_resy = spp[i]->Mode->ResolutionY;
break;
}
}
}
axboot_init();
UNREACHABLE();
}