garg: initial EC image

This image is based on bobba PVT from ToT and SKUID is TBD.

BUG=b:132668378
BRANCH=octopus
TEST=make buildall -j

Change-Id: I6471b4ec2cf49d682483782384114594f62f916d
Signed-off-by: Devin Lu <Devin.Lu@quantatw.com>
Reviewed-on: https://chromium-review.googlesource.com/1616892
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Diana Z <dzigterman@chromium.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/board/garg/battery.c b/board/garg/battery.c
new file mode 100644
index 0000000000..cc927f1f0f
--- /dev/null
+++ b/board/garg/battery.c
@@ -0,0 +1,39 @@
+/* Copyright 2019 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 pack vendor provided charging profile
+ */
+
+#include "battery_fuel_gauge.h"
+#include "common.h"
+#include "util.h"
+
+/*
+ * Battery info for all garg battery types. Note that the fields
+ * start_charging_min/max and charging_min/max are not used for the charger.
+ * The effective temperature limits are given by discharging_min/max_c.
+ *
+ * Fuel Gauge (FG) parameters which are used for determining if the battery
+ * is connected, the appropriate ship mode (battery cutoff) command, and the
+ * charge/discharge FETs status.
+ *
+ * Ship mode (battery cutoff) requires 2 writes to the appropriate smart battery
+ * register. For some batteries, the charge/discharge FET bits are set when
+ * charging/discharging is active, in other types, these bits set mean that
+ * charging/discharging is disabled. Therefore, in addition to the mask for
+ * these bits, a disconnect value must be specified. Note that for TI fuel
+ * gauge, the charge/discharge FET status is found in Operation Status (0x54),
+ * but a read of Manufacturer Access (0x00) will return the lower 16 bits of
+ * Operation status which contains the FET status bits.
+ *
+ * The assumption for battery types supported is that the charge/discharge FET
+ * status can be read with a sb_read() command and therefore, only the register
+ * address, mask, and disconnect value need to be provided.
+ */
+const struct board_batt_params board_battery_info[] = {
+	/* TODO(b/133125112): fill in after receiving datasheets */
+};
+BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
+
+const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_TYPE_COUNT;