setos

commit 261bb7c373f6c1b38130f6d30211654470bca313
parent d29cbf94bdd950b87d2605ba1433047e4a40b8e4
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Fri, 29 Mar 2024 15:34:56 +0900

add graphics output protocol

Diffstat:
M
loader.c
 | 
8
++++++++
M
uefi.h
 | 
46
+++++++++++++++++++++++++++++++++++++++++++++-
M
utils.c
 | 
24
++++++++++++++++++++++++
M
utils.h
 | 
3
+++

4 files changed, 80 insertions(+), 1 deletion(-)
diff --git a/loader.c b/loader.c
@@ -39,6 +39,14 @@ EfiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *systab)
 			mmap->PhysicalStart, mmap->NumberOfPages, mmap->Attribute);
 	}
 
+	EFI_GRAPHICS_OUTPUT_PROTOCOL *gop;
+	stat = open_gop(ImageHandle, &gop);
+	if (stat != EFI_SUCCESS) {
+		efi_printf("open_gop: %d\n", stat);
+		return stat;
+	}
+	efi_printf("gop open\n");
+
 	EFI_FILE_PROTOCOL *root, *kernel;
 	stat = open_root(ImageHandle, &root);
 	if (stat != EFI_SUCCESS) {
diff --git a/uefi.h b/uefi.h
@@ -26,6 +26,9 @@ typedef struct EFI_GUID {
 #define EFI_LOADED_IMAGE_PROTOCOL_GUID \
 	((EFI_GUID) {0x5b1b31a1, 0x9562, 0x11d2, \
 		{0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b}})
+#define EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID \
+	((EFI_GUID) {0x9042a9de, 0x23dc, 0x4a38, \
+		{0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a}})
 #define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
 	((EFI_GUID) {0x964e5b22, 0x6459, 0x11d2, \
 		{0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b}})
@@ -109,6 +112,30 @@ typedef struct {
 	UINT64 Attribute;
 } EFI_MEMORY_DESCRIPTOR;
 
+typedef struct _EFI_GRAPHICS_OUTPUT_PROTOCOL EFI_GRAPHICS_OUTPUT_PROTOCOL;
+
+typedef struct {
+} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;
+
+typedef
+EFI_STATUS (EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE) (
+	);
+
+typedef
+EFI_STATUS (EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE) (
+	);
+
+typedef
+EFI_STATUS (EFIAPI *EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT) (
+	);
+
+struct _EFI_GRAPHICS_OUTPUT_PROTOCOL {
+	EFI_GRAPHICS_OUTPUT_PROTOCOL_QUERY_MODE QueryMode;
+	EFI_GRAPHICS_OUTPUT_PROTOCOL_SET_MODE   SetMode;
+	EFI_GRAPHICS_OUTPUT_PROTOCOL_BLT        Blt;
+	EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE       *Mode;
+};
+
 typedef struct _EFI_FILE_PROTOCOL EFI_FILE_PROTOCOL;
 
 typedef
@@ -278,6 +305,21 @@ EFI_STATUS (EFIAPI *EFI_OPEN_PROTOCOL)(
 	IN UINT32     Attributes
 	);
 
+typedef enum {
+	AllHandles,
+	ByRegisterNotify,
+	ByProtocol
+} EFI_LOCATE_SEARCH_TYPE;
+
+typedef
+EFI_STATUS (EFIAPI *EFI_LOCATE_HANDLE_BUFFER)(
+	IN EFI_LOCATE_SEARCH_TYPE SearchType,
+	IN EFI_GUID               *Protocol OPTIONAL,
+	IN VOID                   *SearchKey OPTIONAL,
+	OUT UINTN                 *NoHandles,
+	OUT EFI_HANDLE            **Buffer
+	);
+
 #define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL 0x1
 
 typedef struct {
@@ -311,7 +353,9 @@ typedef struct {
 	void *driversupport_services[2];
 	EFI_OPEN_PROTOCOL OpenProtocol;
 	void *open_and_close_protocol_services[2];
-	void *library_servies[5];
+	void *library_servies0[1];
+	EFI_LOCATE_HANDLE_BUFFER LocateHandleBuffer;
+	void *library_servies1[3];
 	void *crc_services[1];
 	void *miscellaneus_services1[3];
 } EFI_BOOT_SERVICES;
diff --git a/utils.c b/utils.c
@@ -151,6 +151,30 @@ open_root(EFI_HANDLE ImageHandle, EFI_FILE_PROTOCOL **root)
 	return stat;
 }
 
+EFI_STATUS
+open_gop(EFI_HANDLE ImageHandle, EFI_GRAPHICS_OUTPUT_PROTOCOL **gop)
+{
+	EFI_STATUS stat;
+	UINTN n = 0;
+	EFI_HANDLE *_gop;
+	stat = SystemTable->BootServices->LocateHandleBuffer(
+		ByProtocol, &EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID, NULL,
+		&n, &_gop
+		);
+	if (stat != EFI_SUCCESS) {
+		efi_printf("locate handle buffer: %d\n", stat);
+		return stat;
+	}
+	stat = SystemTable->BootServices->OpenProtocol(
+		_gop[0], &EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID,
+		(VOID **) gop, ImageHandle, NULL, EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL
+		);
+	if (stat != EFI_SUCCESS) {
+		efi_printf("open protocol: %d\n", stat);
+		return stat;
+	}
+	return EFI_SUCCESS;
+}
 
 EFI_STATUS
 read_ehdr(EFI_FILE_PROTOCOL *elf, ElfHdr *ehdr)
diff --git a/utils.h b/utils.h
@@ -20,6 +20,9 @@ char *wstr2str(CHAR16 *s16, char *s8);
 // It returns number of CHAR16s written excluding the final NULL.
 int efi_printf(char *fmt, ...);
 
+// Open_gop opens the graphics output protocol.
+EFI_STATUS open_gop(EFI_HANDLE, EFI_GRAPHICS_OUTPUT_PROTOCOL **);
+
 // Open_root opens the root directory of the efi image.
 EFI_STATUS open_root(EFI_HANDLE, EFI_FILE_PROTOCOL **);