ACPICA: Disassembler: Add support for C-style operators and expressions.

Now emit ASL+ code which includes C-style operators.
Optionally, legacy text ASL operators can still be emitted.

This patch only affects compiler/disassembler support which is not in the
Linux kernel.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index ebf02cc10a43..7f60582d0c8c 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -305,6 +305,7 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
 
 ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
 ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
+ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
 
 ACPI_GLOBAL(u8, acpi_gbl_db_opt_disasm);
 ACPI_GLOBAL(u8, acpi_gbl_db_opt_verbose);
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index c00e7e41ad75..1c218d9478cb 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -722,6 +722,7 @@ union acpi_parse_value {
         ACPI_DISASM_ONLY_MEMBERS (\
         u8                              disasm_flags;   /* Used during AML disassembly */\
         u8                              disasm_opcode;  /* Subtype used for disassembly */\
+        char                            *operator_symbol;/* Used for C-style operator name strings */\
         char                            aml_op_name[16])        /* Op name (debug only) */
 
 /* Flags for disasm_flags field above */
@@ -827,6 +828,7 @@ struct acpi_parse_state {
 #define ACPI_PARSEOP_EMPTY_TERMLIST     0x04
 #define ACPI_PARSEOP_PREDEF_CHECKED     0x08
 #define ACPI_PARSEOP_SPECIAL            0x10
+#define ACPI_PARSEOP_COMPOUND           0x20
 
 /*****************************************************************************
  *