battery: Move fuel gauge code to common

Move fuel gauge code to common to avoid duplication in octopus and
grunt baseboards.

BUG=b:79704826,b:74018100
BRANCH=none
TEST=make -j buildall

Change-Id: I58a615c9ed7906cb19b49c2baa36aaa619838cf1
Signed-off-by: Edward Hill <ecgh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1072637
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Vijay Hiremath <vijay.p.hiremath@intel.corp-partner.google.com>
Reviewed-by: Jett Rink <jettrink@chromium.org>

2 files changed, 52 insertions, 0 deletions

diff --git a/include/battery_fuel_gauge.h b/include/battery_fuel_gauge.h
new file mode 100644
index 0000000000..8de72d7d4e
--- /dev/null
+++ b/include/battery_fuel_gauge.h
@@ -0,0 +1,45 @@
+/* Copyright 2018 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.
+ *
+ * Battery fuel gauge parameters
+ */
+
+#ifndef __CROS_EC_BATTERY_FUEL_GAUGE_H
+#define __CROS_EC_BATTERY_FUEL_GAUGE_H
+
+#include "battery.h"
+
+/* Number of writes needed to invoke battery cutoff command */
+#define SHIP_MODE_WRITES 2
+
+struct ship_mode_info {
+	const uint8_t reg_addr;
+	const uint16_t reg_data[SHIP_MODE_WRITES];
+};
+
+struct fet_info {
+	const int mfgacc_support;
+	const uint8_t reg_addr;
+	const uint16_t reg_mask;
+	const uint16_t disconnect_val;
+};
+
+struct fuel_gauge_info {
+	const char *manuf_name;
+	const char *device_name;
+	const uint8_t override_nil;
+	const struct ship_mode_info ship_mode;
+	const struct fet_info fet;
+};
+
+struct board_batt_params {
+	const struct fuel_gauge_info fuel_gauge;
+	const struct battery_info batt_info;
+};
+
+/* Forward declare board specific data used by common code */
+extern const struct board_batt_params board_battery_info[];
+extern const enum battery_type DEFAULT_BATTERY_TYPE;
+
+#endif /* __CROS_EC_BATTERY_FUEL_GAUGE_H */
diff --git a/include/config.h b/include/config.h
index e7ca893b80..aa99222954 100644
--- a/include/config.h
+++ b/include/config.h
@@ -303,6 +303,13 @@
 #undef CONFIG_BATTERY_DEVICE_CHEMISTRY
 
 /*
+ * If defined, the board must supply fuel gauge and battery information for
+ * each supported battery. This information is then used for battery cut off
+ * and to check the charge/discharge FET status.
+ */
+#undef CONFIG_BATTERY_FUEL_GAUGE
+
+/*
  * Critical battery shutdown timeout (seconds)
  *
  * If the battery is at extremely low charge (and discharging) or extremely