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-rw-r--r--include/acpi/acpiosxf.h31
-rw-r--r--include/acpi/actypes.h9
2 files changed, 40 insertions, 0 deletions
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index f6f5f8af2112..03b3e6d405ff 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -399,4 +399,35 @@ char *acpi_os_get_next_filename(void *dir_handle);
void acpi_os_close_directory(void *dir_handle);
#endif
+/*
+ * File I/O and related support
+ */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_file
+ACPI_FILE acpi_os_open_file(const char *path, u8 modes);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_file
+void acpi_os_close_file(ACPI_FILE file);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_file
+int
+acpi_os_read_file(ACPI_FILE file,
+ void *buffer, acpi_size size, acpi_size count);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_file
+int
+acpi_os_write_file(ACPI_FILE file,
+ void *buffer, acpi_size size, acpi_size count);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_file_offset
+long acpi_os_get_file_offset(ACPI_FILE file);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_set_file_offset
+acpi_status acpi_os_set_file_offset(ACPI_FILE file, long offset, u8 from);
+#endif
+
#endif /* __ACPIOSXF_H__ */
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 19b26bb69a70..5480209b4254 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -1244,4 +1244,13 @@ struct acpi_memory_list {
#define ACPI_OSI_WIN_7 0x0B
#define ACPI_OSI_WIN_8 0x0C
+/* Definitions of file IO */
+
+#define ACPI_FILE_READING 0x01
+#define ACPI_FILE_WRITING 0x02
+#define ACPI_FILE_BINARY 0x04
+
+#define ACPI_FILE_BEGIN 0x01
+#define ACPI_FILE_END 0x02
+
#endif /* __ACTYPES_H__ */