Add compiler/decompiler for lightbar bytecode programs.

BUG=none
BRANCH=ToT
TEST=manual

  make BOARD=samus
  for i in extra/lightbar/programs/[g-z]*.bin; do
    ./build/samus/util/lbcc -d $i /tmp/x.lbs
    ./build/samus/util/lbcc /tmp/x.lbs /tmp/x.bin
    cmp $i /tmp/x.bin
  done

Change-Id: I86c014c425e917ecafadd1c6845fcf2e5b4edbb7
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/220244

include/ec_commands.h

@@ -1037,6 +1037,7 @@ struct lightbar_params_v1 {
 
 /* Lightbyte program. */
 #define LB_PROG_LEN 192
+#define LB_PROG_MAX_OPERANDS 4
 struct lb_program {
 	uint8_t size;
 	uint8_t data[LB_PROG_LEN];

include/lightbar.h

@@ -19,6 +19,21 @@ enum lightbar_sequence {
 };
 #undef LBMSG
 
+/* Bytecode field constants */
+enum lb_color {
+	LB_COL_RED,
+	LB_COL_GREEN,
+	LB_COL_BLUE,
+	LB_COL_ALL
+};
+
+enum lb_control {
+	LB_CONT_COLOR0,
+	LB_CONT_COLOR1,
+	LB_CONT_PHASE,
+	LB_CONT_MAX
+};
+
 /* Request a preset sequence from the lightbar task. */
 void lightbar_sequence(enum lightbar_sequence s);
 

include/lightbar_opcode_list.h

@@ -0,0 +1,15 @@
+/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ *
+ * This defines a list of lightbar opcodes for programmable sequences.
+ */
+#define LIGHTBAR_OPCODE_TABLE	\
+	OP(JUMP),		\
+	OP(DELAY),		\
+	OP(SET_BRIGHTNESS),	\
+	OP(SET_COLOR),	\
+	OP(SET_DELAY_TIME),	\
+	OP(RAMP_ONCE),	\
+	OP(CYCLE_ONCE),	\
+	OP(CYCLE),