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authorLv Zheng <lv.zheng@intel.com>2014-07-08 10:06:53 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-08 14:22:25 +0200
commit7824f44ecfef4f05caaa8f9536c523b8d645f102 (patch)
tree320c0c30a153123fb69e84bff660c18d5ebb241f /include/acpi
parent83b80bace4bdfc61abd16ca6ad0a51734a0f57f0 (diff)
downloadlinux-7824f44ecfef4f05caaa8f9536c523b8d645f102.tar.bz2
ACPICA: OSL: Add portable file IO to improve portability
This patch adds portable file IO to generic OSL to improve the portability of the applications. A portable application may use different file IO interfaces than the standard C library ones. This patch thus introduces an abstract file IO layer into the generic OSL. Note that this patch does not introduce users of such interfaces, further patches should introduce users one by one carefully with build tests performed. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
-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__ */