metaknight: Initial EC image

Create the initial EC image for the metaknight variant by copying
the waddledoo reference board EC files into a new directory named
for the variant.

(Auto-Generated by create_initial_ec_image.sh version 1.2.0).

BUG=b:169813211
BRANCH=none
TEST=make BOARD=metaknight

Signed-off-by: Yu-An Chen <yu-an.chen@quanta.corp-partner.google.com>
Change-Id: I25cf60b45dfdfb50ec7a3e2c057e71eb7cbcaf5f
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2488951
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Commit-Queue: Paul Fagerburg <pfagerburg@chromium.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/board/metaknight/battery.c b/board/metaknight/battery.c
new file mode 100644
index 0000000000..64af3b4302
--- /dev/null
+++ b/board/metaknight/battery.c
@@ -0,0 +1,66 @@
+/* Copyright 2020 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 "charge_state.h"
+#include "common.h"
+
+/*
+ * Battery info for all waddledoo 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[] = {
+	/* POW-TECH Battery Information */
+	[BATTERY_POWER_TECH] = {
+		.fuel_gauge = {
+			.manuf_name = "POW-TECH",
+			.ship_mode = {
+				.reg_addr = 0x0,
+				.reg_data = { 0x10, 0x10 },
+			},
+			.fet = {
+				.reg_addr       = 0x00,
+				.reg_mask       = 0x2000,
+				.disconnect_val = 0x2000,
+			}
+		},
+		.batt_info = {
+			.voltage_max          = 8800,    /* mV */
+			.voltage_normal       = 7700,
+			.voltage_min          = 6000,
+			.precharge_current    = 160,       /* mA */
+			.start_charging_min_c = 0,
+			.start_charging_max_c = 45,
+			.charging_min_c       = 0,
+			.charging_max_c       = 45,
+			.discharging_min_c    = -20,
+			.discharging_max_c    = 60,
+		},
+
+	},
+};
+BUILD_ASSERT(ARRAY_SIZE(board_battery_info) == BATTERY_TYPE_COUNT);
+
+const enum battery_type DEFAULT_BATTERY_TYPE = BATTERY_POWER_TECH;