Revert "Import uACPI"

.gitmodules

@@ -13,6 +13,3 @@
 [submodule "seabios"]
 	path = seabios
 	url = https://github.com/FlyGoat/seabios-csmwrap.git
-[submodule "uACPI"]
-	path = uACPI
-	url = https://github.com/uACPI/uACPI.git

GNUmakefile

@@ -74,8 +74,6 @@ override CFLAGS += \
 override CPPFLAGS := \
     -I src \
     -I nyu-efi/inc \
-    -I uACPI/include \
-    -DUACPI_OVERRIDE_CONFIG \
     -DBUILD_VERSION=\"$(BUILD_VERSION)\" \
     -isystem freestnd-c-hdrs \
     $(CPPFLAGS) \
@@ -134,7 +132,7 @@ override LDFLAGS += \
 
 # Use "find" to glob all *.c, *.S, and *.asm{32,64} files in the tree and obtain the
 # object and header dependency file names.
-override SRCFILES := $(shell find -L src cc-runtime/src nyu-efi/$(ARCH) uACPI/source uACPI/include -type f | LC_ALL=C sort)
+override SRCFILES := $(shell find -L src cc-runtime/src nyu-efi/$(ARCH) -type f | LC_ALL=C sort)
 override CFILES := $(filter %.c,$(SRCFILES))
 override ASFILES := $(filter %.S,$(SRCFILES))
 ifeq ($(ARCH),ia32)

README.md

@@ -43,6 +43,5 @@ Please read the [Contributing](https://github.com/FlyGoat/CSMWrap/wiki/Contribut
 *   The **[SeaBIOS project](https://www.seabios.org/)** for their CSM and VBIOS code.
 *   **[Nyu-EFI](https://codeberg.org/osdev/nyu-efi)** for the EFI C runtime, build system, and headers.
 *   **[EDK2 (TianoCore)](https://github.com/tianocore/edk2)** for UEFI specifications and some code snippets.
-*   **[uACPI](https://github.com/uACPI/uACPI)** for ACPI table handling.
 *   **@CanonKong** for test feedback and general knowledge.
 *   All contributors and testers from the community!

src/acpi.c

@@ -2,50 +2,8 @@
 #include <printf.h>
 #include "csmwrap.h"
 
-#include <uacpi/kernel_api.h>
-#include <uacpi/tables.h>
-#include <uacpi/uacpi.h>
-
 uintptr_t g_rsdp = 0;
 
-static inline const char *uacpi_log_level_to_string(uacpi_log_level lvl) {
-    switch (lvl) {
-        case UACPI_LOG_DEBUG:
-            return "DEBUG";
-        case UACPI_LOG_TRACE:
-            return "TRACE";
-        case UACPI_LOG_INFO:
-            return "INFO";
-        case UACPI_LOG_WARN:
-            return "WARN";
-        case UACPI_LOG_ERROR:
-        default:
-            return "ERROR";
-    }
-}
-
-void uacpi_kernel_log(enum uacpi_log_level lvl, const char *text) {
-    printf("[uACPI][%s] %s", uacpi_log_level_to_string(lvl), text);
-}
-
-void *uacpi_kernel_map(uacpi_phys_addr addr, EFI_UNUSED uacpi_size len) {
-    return (void*)((uintptr_t)addr);
-}
-
-void uacpi_kernel_unmap(EFI_UNUSED void *ptr, EFI_UNUSED uacpi_size len) {
-}
-
-uacpi_status uacpi_kernel_get_rsdp(uacpi_phys_addr *rsdp) {
-    if (!g_rsdp) {
-        return UACPI_STATUS_NOT_FOUND;
-    }
-
-    *rsdp = g_rsdp;
-    return UACPI_STATUS_OK;
-}
-
-static void *early_table_buffer;
-
 bool acpi_init(struct csmwrap_priv *priv) {
     UINTN i;
     EFI_GUID acpiGuid = ACPI_TABLE_GUID;
@@ -79,29 +37,9 @@ bool acpi_init(struct csmwrap_priv *priv) {
     }
 
     if (g_rsdp) {
-        const size_t table_buffer_size = 4096;
-
-        if (gBS->AllocatePool(EfiLoaderData, table_buffer_size, &early_table_buffer) != EFI_SUCCESS) {
-            return false;
-        }
-
-        enum uacpi_status uacpi_status;
-        uacpi_status = uacpi_setup_early_table_access(early_table_buffer, table_buffer_size);
-        if (uacpi_status != UACPI_STATUS_OK) {
-            printf("uACPI early table setup failed: %s\n", uacpi_status_to_string(uacpi_status));
-            return false;
-        }
-
         return true;
     }
 
     printf("No ACPI RSDT found\n");
     return false;
 }
-
-void acpi_prepare_exitbs(void) {
-    if (early_table_buffer != NULL) {
-        gBS->FreePool(early_table_buffer);
-        early_table_buffer = NULL;
-    }
-}

src/csmwrap.c

@@ -161,7 +161,6 @@ EFI_STATUS efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable)
 
     /* WARNING: No EFI Video afterwards */
     csmwrap_video_prepare_exitbs(&priv);
-    acpi_prepare_exitbs();
 
     /* WARNING: No EFI runtime service afterwards */
     UINTN efi_mmap_size = 0, efi_desc_size = 0, efi_mmap_key = 0;

src/csmwrap.h

@@ -40,7 +40,6 @@ struct csmwrap_priv {
 extern int unlock_bios_region();
 extern int build_coreboot_table(struct csmwrap_priv *priv);
 bool acpi_init(struct csmwrap_priv *priv);
-void acpi_prepare_exitbs(void);
 int build_e820_map(struct csmwrap_priv *priv, EFI_MEMORY_DESCRIPTOR *memory_map, UINTN memory_map_size, UINTN descriptor_size);
 int apply_intel_platform_workarounds(void);